President Trump campaigned with a promise to conservatives that he would fill the federal courts, from the top on down, with judges to their liking.
"He is a committed textualist and originalist, one whose time on the bench has revealed a unique ability to apply these principles to legal facts", J.D. Vance - the conservative author of the bestseller Hillbilly Elegy and a student of Kavanaugh's at Yale Law School - wrote in the Wall Street Journal. More than three dozen former Kavanaugh law clerks also have gone on to work for every justice, except Ginsburg.
Kavanaugh served as President George W. Bush's staff secretary, which deals with all the paperwork going through the Oval Office.
Kethledge, a graduate of the University of Michigan Law School, is a former Kennedy clerk and a former in-house lawyer at Ford Motor Co.
In this and a number of controversies landing before his court, Kavanaugh seemed to have been performing for an audience of one: the Republican president who would one day appoint him to the highest judicial perch in the land.
McConnell reportedly anxious that Kavanaugh's paperwork trail could make him harder to confirm.
Mr Kavanaugh is a federal appellate judge on the DC Circuit Court of Appeals.
"Kavanaugh has proven to be a staunch conservative who has relied on originalism and textualism while serving on the US Court of Appeals for the District of Columbia Circuit". During his tenure, he has clearly established a judicial philosophy that the personal beliefs of individuals should dictate the lives of others. "And a judge must interpret the Constitution as written, informed by history and tradition and precedent". Kavanaugh is a member of the conservative legal group and was on a list of potential nominees that it helped compile for Trump. According to the New York Times, Trump "found him likable but comparatively tiresome".
When Justice Anthony Kennedy - a swing vote - announced his retirement last month it became clear that Roe v Wade, the landmark 1973 ruling that legalised abortion in the USA would soon be under threat. "Why won't she rule out voting for Trump's anti-choice picks?" both ads ask.
Senate Majority Leader Mitch McConnell said opponents were using "40-year-old scare tactics" over abortion and other issues but they "will not stop us from doing the right thing".
"I don't think we've gotten this close to an announcement before without it leaking", CNN's Jake Tapper said.
Trump's approach to naming a new Supreme Court justice has unnerved some Democrats.
"As I have always said, I believe the Senate should hold committee hearings; Senators should meet with him, we should debate his qualifications on the Senate floor and cast whatever vote we believe he deserves". "I think that there is a process - that process needs to be fair, it needs to be open". He said that picking a new justice was the most important responsibility of his office other than matters of war.
Judge Brett Kavanaugh stands on stage after he and Supreme Court Justice Samuel Alito participated in the opening panel of Georgetown Law Journal's annual symposium, in Washington on November 2, 2017.
"It's a red state with a Democratic senator". Joe Donnelly of Indiana, Heidi Heitkamp of North Dakota, Doug Jones of Alabama, Joe Manchin of West Virginia and Dianne Feinstein of California.
"This list is the bidding of corporate special interests hell-bent on handing health care over to insurance companies, crushing unions that represent working men and women, and promoting policies that will leave the middle-class further behind", said Sen.
Sen. Susan Collins of ME is one of two Republican senators who support abortion rights and is facing pressure from the left to oppose Kavanaugh.
Kennedy had voted to preserve the core principles of the high court's 1973 ruling in Roe v. Wade.
With Republicans controlling the Senate by a narrow margin, GOP leaders are gearing up for a grinding Supreme Court nomination fight. By lowering the mandatory retirement age of judges to 65, Kaczynski aims to stack the court with party hacks and loyalists.