Thousands of people participated in the March for Truth across the country Saturday to demand an independent commission to look into President Donald Trump's alleged ties with Russia. The protesters from 135 cities across the country, including Washington, D.C., New York City, Philadelphia, Boston, San Francisco and others, also demanded that Congress force the president to release his tax returns.

Some of the prominent speakers in the March for Truth — a coalition of activist groups and grassroots, local organizers — were Congressional representatives including Jerry Nadler, Nydia Velasquez, Brad Sherman, Mike Quigley, Al Green, Robin Kelly, Jamie Raskin, and Donald McEachin, according to a press release by the organizers.

Read: Trump's Top 5 Aides Accused Of Having Links With Moscow

Among the highlights of the protests were some of the catchy slogans used by various participants nationwide. Twitter users were quick to spot them and post them online. 

Here are some of the creative and funny signs spotted at different protests Saturday.

"People have to understand that this is a president who not only is trying to lead a cover up of his own Russia ties, but he has a problem with the truth in general," Andrea Chalupa, an organizer with the March for Truth, told ABC News during the march in New York City. She added: "So we're here standing up for the truth."

In New York City, participants marched from Foley Square in Lower Manhattan and Chalupa said a wreath was laid at the Bowling Green subway station, which referred to Trump advisor Kellyanne Conway's statements about the so-called Bowling Green Massacre, an event that never actually took place.

In February, Conway attempted to justify the administration’s restrictions on refugee admissions and travel from several predominately Muslim countries by citing a massacre that never happened. However, she later acknowledged the mistake and tweeted, saying she meant "Bowling Green terrorists."

In the nation's capital, protesters gathered at the Washington Monument, and shouted slogans attacking the White House for its attempts to cover up its connections with the Russian government.

"The Rosenstein memo was phony, we want testimony from Comey!" the protestors reportedly chanted, criticizing Trump's decision to fire the director of the FBI after receiving a recommendation from Deputy Attorney General Rod Rosenstein. 

"That firing was abrupt, what are you covering up?" another chant went.

According to Chicago Tribune, Odell Buggs, a 53-year-old small business owner who traveled to the capital from Rochester, New York, with her two sisters, said: "I wanted to be part of the crowd, to make it larger and make a statement."

Buggs also drove to D.C. for the Women's March, Tax March and Climate March this year. She added: "Because if you make a statement in D.C., you make a statement to the whole country."

Timothy Snyder, a professor of history at Yale University and the author of "On Tyranny," told ABC News: "The issue with the Trump Administration is no longer the traditional issue of transparency, it's the issue of fiction... To say they are not transparent isn't even beginning to characterize it. So for me, the investigation is about Russia, of course, and the myriad connections between Trump's people and Russia, but it's also about fact versus fiction."

"For that reason, we are at a major crossroads about what kind of country we want to be," he added.