The final vestige of U.S. Sen. Cory Booker’s unsuccessful 2020 campaign for the president came to an end Monday when he officially shut down his fundraising committee. New Federal Election Commission filings show Booker paid off his final presidential campaign debts, most notably $377,173 in legal services. He transferred $345,731 from his Senate campaign account and a separate committee he set up to raise money for his re-election, the New Jersey Democratic State Committee and to pay off what he owed when he sought the White House. Booker had $5.9 million left over in his Senate account after…