Trump signs an executive order for border security and immigration enforcement improvements at the Department of Homeland Security in Washington.

Jan. 25, 2017 Trump signs an executive order for border security and immigration enforcement improvements at the Department of Homeland Security in Washington. Chip Somodevilla/Pool photo via Bloomberg News

I did not leave the Republican Party. The Republican Party left its senses. The political movement that once stood athwart history resisting bloated government and military adventurism has been reduced to an amalgam of talk-radio resentments. President Trump’s Republicans have devolved into a party without a cause, dominated by a leader hopelessly ill-informed about the basics of conservatism, U.S. history and the Constitution.

America’s first Republican president reportedly said , “Nearly all men can stand adversity. But if you want to test a man’s character, give him power.” The current Republican president and the party he controls were granted monopoly power over Washington in November and already find themselves spectacularly failing Abraham Lincoln’s character exam.

(Erin Patrick O'Connor/The Washington Post)

It would take far more than a single column to detail Trump’s failures in the months following his bleak inaugural address. But the Republican leaders who have subjugated themselves to the White House’s corrupting influence fell short of Lincoln’s standard long before their favorite reality-TV star brought his gaudy circus act to Washington.

When I left Congress in 2001, I praised my party’s successful efforts to balance the budget for the first time in a generation and keep many of the promises that led to our takeover in 1994. I concluded my last speech on the House floor by foolishly predicting that Republicans would balance budgets and champion a restrained foreign policy for as long as they held power.

I would be proved wrong immediately.

As the new century began, Republicans gained control of the federal government. George W. Bush and the GOP Congress responded by turning a $155 billion surplus into a $1 trillion deficit and doubling the national debt, passing a $7 trillion unfunded entitlement program and promoting a foreign policy so utopian it would have made Woodrow Wilson blush. Voters made Nancy Pelosi speaker of the House in 2006 and Barack Obama president in 2008.

After their well-deserved drubbing, Republicans swore that if voters ever entrusted them with running Washington again, they would prove themselves worthy. Trump’s party was given a second chance this year, but it has spent almost every day since then making the majority of Americans regret it.

The GOP president questioned America’s constitutional system of checks and balances. Republican leaders said nothing. He echoed Stalin and Mao by calling the free press “the enemy of the people.” Republican leaders were silent. And as the commander in chief insulted allies while embracing autocratic thugs, Republicans who spent a decade supporting wars of choice remained quiet. Meanwhile, their budget-busting proposals demonstrate a fiscal recklessness very much in line with the Bush years.

Last week’s Russia revelations show just how shamelessly Republican lawmakers will stand by a longtime Democrat who switched parties after the promotion of a racist theory about Barack Obama gave him standing in Lincoln’s once-proud party. Neither Lincoln, William Buckley nor Ronald Reagan would recognize this movement.

(Adriana Usero,Kate Woodsome/The Washington Post)

It is a dying party that I can no longer defend.

Pulitzer Prize-winning historian Jon Meacham has long predicted that the Republican and Democrats’ 150-year duopoly will end. The signs seem obvious enough. When my Republican Party took control of Congress in 1994, it was the first time the GOP had won the House in a generation. The two parties have been in a state of turmoil ever since.

In 2004, Republican strategist Karl Rove anticipated a majority that would last a generation; two years later, Pelosi became the most liberal House speaker in history. Obama was swept into power by a supposedly unassailable Democratic coalition. In 2010, the tea party tide rolled in. Obama’s reelection returned the momentum to the Democrats, but Republicans won a historic state-level landslide in 2014. Then last fall, Trump demolished both the Republican and Democratic establishments.

Political historians will one day view Donald Trump as a historical anomaly. But the wreckage visited of this man will break the Republican Party into pieces — and lead to the election of independent thinkers no longer tethered to the tired dogmas of the polarized past. When that day mercifully arrives, the two-party duopoly that has strangled American politics for almost two centuries will finally come to an end. And Washington just may begin to work again.

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