Although Kennedy was a conservative nominated by Republican President Ronald Reagan, he was seen as the "swing vote" on the court because he joined with liberal justices on some major issues, including expanding gay rights and upholding abortion rights.
The road to confirmation for Trump's pick is likely to be a contentious one, as Democrats are expected to push back.
Trump also indicated that he would make the nomination by July 9, just over a week from his announcement on Air Force One.
There's the list, and there's the short list.
White House officials said Trump was likely to quickly begin interviewing candidates from a list of 25 people that the conservative Federalist Society helped draw up, with an eye to getting the new justice confirmed by the Senate in the autumn.
Other names on Trump's shortlist reportedly include former Kennedy clerk Raymond Kethledge; Amul Thapar, the preferred choice of Senate Majority Leader Mitch McConnell; and Sen.
Trump says he thinks that is "inappropriate to discuss".
Kennedy's retirement, he said, could provide Democrats with a clear-cut argument in November for the importance of retaking Congress in case further court vacancies arise during the Trump administration.
Trump's opportunity to replace Justice Anthony Kennedy, who had voted to uphold Roe in 1992, is "exactly what we had hoped for", said Jim Carlin, an Iowa Republican state senator.
Missing Thai boys 'found alive' in caves, Thai provincial governor says
Rescuers make their way down at the entrance to the cave complex in Mae Sai, Chiang Rai province, in northern Thailand . Another displays the silhouettes of 12 boys and a man against the stalactites of a cave with the words: "Stay strong".
"We have to pick a great one".
Despite the fact that the Republican judge worked on the legal attack mounted against Clinton, he has more recently written a law review article offering an extremist view of presidential power. The key races that will determine who controls the Senate next year will largely be fought in 10 states that Donald Trump carried in 2016 but that now have Democratic incumbents up for re-election.
With the White House reeling after a week's worth of heart-wrenching images of forced family separations at the southern border, the court's support for the travel ban gave Trump a welcome boost and is sure to embolden him in pressing hard-line immigration policies heading into the midterms.
"I like them all", he said.
"I'm pro-life, but I know how that divides our country immediately, divides everyone", Manchin said during an interview on a West Virginia radio station.
In the meantime, aides will conduct background checks to see if there are issues that could derail a potential nominee.
Heitkamp said she stressed the importance of a nominee "who is pragmatic, fair, compassionate, committed to justice, and above politics".
But it also creates a career-defining dilemma for two key Republican women, Sen. Susan Collins of ME and Lisa Murkowski of Alaska, two moderates whose support of the eventual nominee may be required in a Senate that breaks 51-49 Republican.
Trump, campaigning for Republican Rep. Kevin Cramer, who is challenging Democratic Sen. Charles Grassley, R-Iowa, chairman of the Senate Judiciary Committee that will conduct hearings on the nominee. "Therefore, this vacancy should not be filled until we have a new president", McConnell said in a statement released the night Scalia died.
Over the past year, state legislatures in Iowa, Louisiana and MS have advanced strict limits on abortion that some lawmakers believe could trigger a successful challenge to the landmark 1973 Supreme Court decision that legalized abortion nationwide.