Kavanaugh earned a reputation as a hard worker during clerkships for two appeals court judges and then for Justice Anthony M. Kennedy, a conservative whom he would replace on the Supreme Court, if confirmed.
It is not exaggeration to say that the prospect of tipping the balance of the Supreme Court was the reason why evangelical conservative voters, who had plenty of reason to worry about Trump's character, made a decision to stick with him during the 2016 election campaign.
Kethledge, 51, has served on the Cincinnati-based 6th U.S. Circuit Court of Appeals since 2008 after also being appointed by Bush. Kennedy, a 1988 appointee of President Ronald Reagan, was the most unpredictable.
Kavanaugh ruled in one case involving abortion a year ago and is considered a likely opponent of Roe v. Wade, the 1973 ruling that legalized abortion nationwide.
"That's a big one. and probably not", Trump said.
With reality television-style suspense, he had kept everyone guessing up until the last moment.
This is Trump's second nominee to the court and gives him a chance to shape the court's direction for decades to come.
A half-hour after Trump is scheduled to appear with his choice in an East Room ceremony, Demand Justice, MoveOn, Indivisible, and People for the American Way will gather at the Supreme Court for a rally in opposition.
"I've never seen it this dysfunctional".
Hardiman had a personal connection to the president, having served with Trump's sister on the 3rd U.S. Circuit Court of Appeals in Philadelphia.
Like the other eight justices on the court, Kavanaugh has an Ivy League law degree, spending his undergraduate and law school years at Yale. In a recent case involving abortion and immigration, he wrote a decision that temporarily barred a pregnant teenager in immigration custody from obtaining an abortion.
Death toll from Canada heatwave hits 34 as record-breaking weather continues
Public health officials are urging people to stay hydrated, and to keep an eye on family and neighbors. The rest of the deaths occurred in other parts of the French-speaking province.
Each of the nine justices serves a lifetime appointment. He was a clerk for Justice Kennedy and has strong ties to the Bush family, both as former staffer to George W Bush and for his legal role in the Florida recount in 2000. Kennedy sometimes joined the liberal justices on key rulings on divisive social issues like abortion and gay rights, a practice his replacement may not duplicate. But Judge Kavanaugh may not be so accommodating. The White House has been preparing information materials on all four, who were part of a longer list of 25 names vetted by conservative groups.
The front-runner was a front-runner for a reason. "Following the president's announcement, I will carefully review and consider the record and qualifications of Judge Brett Kavanaugh", Donnelly said in a statement.
He is the kind of judge a President Jeb Bush or Mitt Romney would have picked - a man with an established legal pedigree and a reputation as a reliably conservative jurist. The ads will simply tell viewers who the nominee is and explain why they are qualified to sit on the Supreme Court.
The choice could be made all the more hard for Casey if Trump nominates Thomas Hardiman, now serving as a judge on the 3rd Circuit Court of Appeals which covers part of Pennsylvania, and who was first appointed to serve in U.S. District Court in Pittsburgh in 2003.
He is also a robust supporter of the executive power of the presidency.
Mr Trump is securing a conservative judiciary for a generation. Jon Kyl would guide the nominee through the confirmation process.
Republicans hold a slim 51-49 Senate majority, and with ailing Senator John McCain battling cancer in his home state of Arizona they now can muster only 50 votes.
Liberals also fear that a new conservative justice will help overturn the landmark 1973 Roe v. Wade decision, which protects a woman's right to an abortion.
The appointment will not change the ideological breakdown of a court that already has a 5-4 conservative majority, but nevertheless could move the court to the right.