Former President Donald Trump celebrated a win in a closely watched election case during a return visit to Iowa Saturday, where he blasted his political foes and encouraged his supporters to not move past their grievances with President Joe Biden.

A Colorado judge Friday rejected an effort to keep the GOP front-runner off the state’s primary ballot, concluding that Trump had engaged in insurrection during the Jan. 6, 2021, attack on the U.S. Capitol but that it was unclear whether a Civil War-era constitutional amendment barring insurrectionists from public office applied to the presidency. It was Trump’s latest win following rulings in similar cases in Minnesota and Michigan.

Trump, campaigning in west-central Iowa, called the decision “a gigantic court victory” as he panned what he called “an outrageous attempt to disenfranchise millions of voters by getting us thrown off the ballot.”

“Our opponents are showing every day that they hate democracy,” he charged before a crowd of about 2,000 people at a commit-to-caucus event at a high school in Fort Dodge, Iowa, where supporters decked out in Trump gear had lined up for hours to get a seat in the gymnasium.

Trump’s visit was part of his fall push to sign up supporters and volunteers before the state’s fast-approaching caucuses that will kick off the race for the Republican presidential nomination. It was the latest in a series of targeted regional stops aimed at seizing on the large crowds the former president draws to press attendees to commit to vote for him and serve as precinct leaders on Jan. 15.

While Trump boasted that polls show him far ahead of other contenders, he urged those in attendance Saturday to turn out on caucus day to “make sure we have a big victory” that would signal to other candidates that they should drop out.

“Will you please give me a good showing?” Trump asked the crowd to applause. “That’s the least you can do."

While Trump has a comfortable edge over his top rivals, Florida Gov. Ron DeSantis and former U.N. Ambassador Nikki Haley, in early polls of likely caucus participants, Trump’s campaign has been more aggressive in Iowa than in any of the other early-voting states.

And he continued to attack both DeSantis and Haley during his appearance Saturday, slamming the Florida governor over his past opposition to federal ethanol mandates and for running against Trump.

Trump in a Thursday radio interview had mocked DeSantis for his standing in the polls even after receiving the endorsement of Iowa Gov. Kim Reynolds, who broke with the general practice of declining to support a candidate before the caucuses.