(That was his first competitive round since the Players, having taken time off to heal from a rib injury.) On Friday, he hit 11 fairways and 12 greens but his five birdies were offset by four bogeys.
Young American Xander Schauffele, who had started the day alongside Casey in joint second, held steady in the toughening conditions reeling off four pars before carding his first birdie of the day at the fifth to join Fowler at the top. It might sting a little more for McIlroy (+5) and Day (+10), who played in the same group and said after their round that they were consoling each other along the way.
And the former Ryder Cup playerthen made it five birdies in succession - just one short of the US Open record equalled by Adam Hadwin on Thursday - by picking up shots on the first, second and third. Taking the long walk to sign his card, he looked back at the rain-softened course and mild breeze and said wistfully, "You won't get a better day for scoring".
"The fairways should be wide enough for me to hit, it was just one of those days".
"I feel like I'm capable of a low score on Friday, I just need to get the ball on the fairway and give myself some chances for birdies".
Jason Day and Rory McIlroy never got that memo. His 7-under par tied the record to par for the first round of a U.S. Open held by Jack Nicklaus and Tom Weiskopf, who each shot 7-under 63 at Baltusrol in 1980.
"I lost a bit of skin out there", Casey said of the triple bogey. Fowler shot a 73 and was still very much in the hunt at a second straight major. For the second straight year, Rory McIlroy is packing his bags early, as is defending champion Dustin Johnson and world No. 3 Jason Day.
Champ said a practice round with former British Open victor Louis Oosthuizen and four-times major victor McIlroy on Monday helped his confidence.
Although Koepka's game goes well beyond his power off the tee, at Erin Hills, which played to 7,839 yards on Friday, his distance advantage has been crucial.
Rickie Fowler had a 7-under 65, and was one of 44 players to break par - a record for the first round of a U.S. Open.
After tying for 45th at the Memorial last month, Matsuyama arrived at Erin Hills on a downturn in a topsy-turvy season.
"Guess what?" he said to his 4-year-old son. "To shoot a good round like today, I'm certainly looking forward to the weekend".
But he steadied himself with good par saves at the next two holes before holing from 15 feet for birdie at the fourth and, after another scrambled par save at the sixth, he pitched to a foot at the long seventh to set up his second gain.
Casey, who had shot a six-under-par 66 on Thursday, had threatened to mount an early assault on the leaderboard but came unstuck with a disastrous triple bogey eight on the 14th.
"It's been the best preparation going into a major", Day said.
McIlroy is back to even-par for the round after bogeying the first three holes on the front nine.
President Donald Trump raised the stakes on those changes when he told senators this week that the House version was " mean ". Their plan is to hold no hearings before the vote and take no input on the bill from experts, advocates or the public.
"That (the) United States arms a terrorist group is what causes instability", Khameini wrote on Twitter Monday. Iran, which lies across the Gulf from Qatar , has joined Erdogan in committing to support its isolated ally.
Given his good form and impressive major track record, expect to see Casey back near (or at) the top of the Sunday leaderboard. The last six majors have been won by first-timers, and that cycle has a good chance to continue.
She confirmed this to German leader Angela Merkel in a phone call on Saturday. "We don't know when Brexit talks start". The pound on Friday fell 1.7 percent against the USA dollar and 1.4 percent against the euro.
The United States is joining two other countries, Syria and Nicaragua as the only countries not in the Paris Climate Accords. Climate scientists warn that any temperature increase beyond that "red line" could have disastrous consequences worldwide.
The first fire crews arrived at the scene within minutes, and the London Fire Brigade soon declared it a major incident. Ahlam Said, who made it out of the blaze early-on, was emotional as she spoke to CBS News outside the building.
If you're happy with your current iPad, the boost to specs alone is probably not going to be enough to convince you to upgrade. If Apple is catching up to PCs when it comes to virtual reality, it's just leapfrogged over everyone in augmented reality.
The Pro 10.5 has a bigger battery than the Pro 9.7, but it also has to deal with a brighter screen that refreshes twice as fast. They were already available in jailbreak apps - the kind of apps that Apple doesn't allow in the App Store - or on Android.
Hammond and Carney had been due to address an annual dinner for financiers in the City of London later on Thursday. The fall in the pound after last week's election could push prices yet higher, the central bank said.
After getting outscored 37-33 in the first quarter , Golden State responded by taking an 11-point lead into the break. And I did that from day one, and I just tried to stay with that". "We were really good tonight".
Third seed Halep buckled under the strain of fending off the missiles being launched off Ostapenko's lime green racket. And Ostapenko was quick to admit that there is more improvement to come. "And also I think my character is like that".
'One of those days' as McIlroy finds trouble in Erin Hills rough
According to numbers compiled by CBSSports.com, Day is one of only 4 players who made the cut in the tournament from 2012 to 2016. He punched the third back into the fairway but needed two more to get on the green and two to get down for his second seven.
Jeff Sessions grilled by Senate Intelligence Committee
The appearance before the Senate intelligence committee gave Sessions a chance to defend himself, but offered little new insight. Sessions said during his hearing he is not sure if he would be able to answer the questions in a closed session.
Josh Jackson cancels workout with Celtics
Additionally, if the Lakers were set on drafting Josh Jackson already, they would not schedule a second workout with Ball. That number seems a bit jarring, but if you're aware of DSJ's handiwork, then I suppose it's not too surprising.
Trump being investigated for possible obstruction of justice
While a sitting president is unlikely to face criminal prosecution, obstruction of justice could form the basis for impeachment. Trump wrote on Twitter , in a pair of messages that ended with a reference to his campaign slogan "Make America Great Again".
Congress seeks normalcy, heads back to work after shooting
Hodgkinson has been in the area since March, living out of his van, said Washington FBI Special Agent In Charge Tim Slater. The security details have since greatly expanded much farther than that after the fatal shooting of two Capitol officers.
No change in Theresa May's Brexit plan
Schaeuble predicted Britain would later regret its departure from the bloc "and then they'll come back". May is due to meet its leader Arlene Foster on Tuesday.
Facts About NBA Finals MVP Kevin Durant
Could this man be any more clueless? "We will make those decisions when and if the time comes". That's what we needed. "We're a top-heavy team". "And there's more to come from him".
Prospects for Russia's nascent protests unclear after rally
Organized by opposition leader Navalny on a public holiday, the protests led to mass arrests in Russia's two largest cities. All across Russian Federation , thousands of citizens protested against Putin and his corrupt regime yesterday.