evidence: More than 200 Republicans who previously worked for former President George W. Bush, the late Sen. John McCain, R-Ariz., or Sen. Mitt Romney, R-Utah, penned an open letter Monday endorsing Vice President Kamala Harris for president. [...] Monday's big endorsement from GOP officials follows a separate endorsement released late last week from a dozen Republican White House lawyers who served under former President Ronald Reagan, as well as under both Bush administrations. Similar to the Monday endorsement, Republican officials argued that returning to a Trump administration "would threaten democracy and undermine the rule of law in our country." [...] "We know now, thanks to exit polling and voter data, that it was moderate Republicans and conservative independents in key swing states that ultimately delivered the presidency to Joe Biden," the open letter concluded. "We’re heartfully calling on these friends, colleagues, neighbors, and family members to take a brave stand once more, to vote for leaders that will strive for consensus, not chaos; that will work to unite, not divide; that will make our country and our children proud."