All the top Republicans who say they won't vote for Trump in 2020

President Donald Trump speaks to the 2020 Council for National Policy Meeting, Friday, Aug. 21, 2020, in Arlington, Va.Evan Vucci/AP Photo

• Several Republican leaders have publicly voiced their opposition to Trump and signaled they will not support his 2020 reelection.
• The list includes ex-officials and those currently in office, such as former President George W. Bush and Sen. Mitt Romney of Utah, the GOP presidential nominee in 2012.
• At the Democratic National Convention this week, more Republicans added to the chorus against Trump, including former Secretary of State Colin Powell and former Ohio Gov. John Kasich.

Throughout his presidency, Donald Trump has stoked tensions within the Republican Party he leads, bashing party loyalists and even previous presidential nominees who dared to defy him with names like "loser" and "RINO," for Republican in name only.

These divisions and Trump's no-holds-barred rhetoric have prompted lifelong Republicans to come forward and say they're not backing him in 2020. It's also led to the creation of groups like NeverTrumpers, The Lincoln Project and Republican Voters Against Trump.

Some of these current and former GOP leaders have stretched that promise further and shared plans to instead tick the ballot box for his rival, Democratic presidential candidate Joe Biden. A handful joined the ranks this week at the four-day virtual Democratic National Convention.

Scroll for a list of all the high-ranking Republican officials who have said they will not support Trump's reelection bid.