First, fight every fight in Congress.

We won’t always win, but we can slow or sometimes limit Trump’s destruction. With every fight, we can build political power to put more checks on his administration and build the foundation for future wins. Remember that during the first Trump term, mass mobilization—including some of the largest peaceful protests in world history—was the battery that charged the resistance. There is power in solidarity, and we can’t win if we don’t get in the fight.

During the Trump years, Congress stepped up its oversight of his unprecedented corruption and abuses of power. In the Senate, Democrats gave no quarter to radical Trump nominees; we asked tough questions and held the Senate floor for hours to slow down confirmation and expose Republican extremism. These tactics doomed some nominations entirely, laid the groundwork for other cabinet officials to later resign in disgrace, and brought scrutiny that somewhat constrained Trump’s efforts.

When all this work came together, we won some of the toughest fights. Remember Republicans’ attempts to repeal the Affordable Care Act? Democrats did not have the votes to stop the repeal. Nevertheless, we fought on. Patients kept up a relentless rotation of meetings in Congress, activists in wheelchairs performed civil disobedience, and lawmakers used every tactic possible—late night speeches, forums highlighting patient stories, committee reports, and procedural tactics—to draw attention to the Republican repeal effort. This sustained resistance ultimately shifted the politics of health care repeal. The final vote was a squeaker, but Republicans lost and the ACA survived.

Democrats should also acknowledge that seeking a middle ground with a man who calls immigrants “animals” and says he will “protect” women “whether the women like it or not” is unlikely to land in a good place. Uniting against Trump’s legislative agenda is good politics because it is good policy. It was Democratic opposition to Trump’s tax bill that drove Trump’s approval ratings to what was then the lowest levels of his administration, forcing Republicans to scrap all mention of the law ahead of the 2018 midterm election and helping spark one of the largest blue waves in recent history.

Second, fight Trump in the courts.

Yes, extremist courts, including a Supreme Court stocked with MAGA loyalists, are poised to rubber-stamp Trump’s lawlessness. But litigation can slow Trump down, give us time to prepare and help the vulnerable, and deliver some victories.

Third, focus on what each of us can do.

I understand my assignment in the Senate, but we all have a part to play. During the first Trump administration, Democrats vigorously contested every special election and laid the groundwork to take back the House in the 2018 midterms, creating a powerful check on Trump and breaking the Republican trifecta. Whether it’s stepping up to run for office, supporting a neighbor’s campaign, or getting involved in an organization taking action, we all have to continue to make investments in our democracy—including in states that are passed over as “too red.” The political position we’re in is not permanent, and we have the power to make change if we fight for it.

Finally, Democrats currently in office must work with urgency.

While still in charge of the Senate and the White House, we must do all we can to safeguard our democracy. To resist Trump’s threats to abuse state power against what he calls “the enemy within,” Pentagon leaders should issue a directive now reiterating that the military’s oath is to the Constitution. Senate Majority Leader Chuck Schumer must use every minute of the end-of-year legislative session to confirm federal judges and key regulators—none of whom can be removed by the next President.

To those feeling despair: I understand. But remember, every step toward progress in American history came after the darkness of defeat. Abolitionists, suffragettes, Dreamers, and marchers for civil rights and marriage equality all faced impossible odds, but they persisted. Now it is our turn to pull up our socks and get back in the fight.