ORLEANS — Cape Codders are invited to show their support for the nationwide March for Truth June 3 by gathering on the Boston Common from 2 to 5 p.m. or at the Orleans-Eastham rotary from noon to 2 p.m.

The Our Revolution Cape Cod Affiliate has joined forces with Lower Cape Indivisible to encourage a big turnout. Our Revolution, a national organization that grew out of the Bernie Sanders campaign, lists three goals: “Revitalize American democracy, empower progressive leaders, and elevate the political consciousness.” Its website states that the March is “calling for elected leaders to fully investigate the Trump administration's motives for interfering in the investigation of Russia's involvement in the 2016 election and its ties to the administration.”

Lower Cape Indivisible, one of many Indivisible groups nationwide, says it is “committed to resisting the Trump agenda...(and) aims to hold state and local leaders accountable for fair and ethical action.”

“Some have misinterpreted (the June 3 event) as marching for the general principle of truth,” Karl Oakes of Orleans, Lower Cape Indivisible's steering committee chair, said in an interview. “It's really a concise way of saying (we're seeking) the truth about what happened in the election with Russian interference and political collusion and what the lasting ties are between Trump and the Russian regime.”

A good turnout is important, according to Oakes. “Earlier, when people were saying Donald Trump should (share) his tax records, he said nobody cares. (June 3) is kind of a measure about knowing the truth. Lots of us have suspicions, (but) most of us are intelligent enough to know we won't know until we know. What we want is process. Let everyone in the United States know what has happened, and let the chips fall where they may.”

Both the demonstrations in cities across the country and standouts such as the one at the rotary are intended in part “to send a message to politicians who might be thinking they can get away without facing up to this situation,” Oakes said. “You can't. Millions of people still care about this, and it's a reality check for Trump and his entourage in the White House.”

This year has already seen the Women's March and the March for Science. Why another?

“What's important is to build a mechanism for ongoing citizen activism in defense of some loosely defined progressive agenda – not everybody in Indivisible necessarily defines as progressive – but something more communitarian than the social Darwinism of (House Speaker) Paul Ryan,” said Oakes. “A lot of us have been politically inactive for most of our lives; we didn't feel politics was something we had to take responsibility for. You take responsibility for brushing your teeth, maintaining your car, taking out your garbage – and now you have to take out the political garbage.”

Both Our Revolution and Indivisible are stressing involvement in the electoral process as well. Oakes said that could range from working to keep Elizabeth Warren in the Senate to registering voters in a New Hampshire Congressional district just over the border that a Democratic won by a tiny margin.

If the elections of 2018 and 2020 put progressives in power, that still won't be the end of Oakes's involvement.

“Millennials are such an important part of this for me,” he said. “I have kids who are going to be 27 and 30 in June. I'm doing this 80 percent for them and 20 percent for me, which probably matches life expectancy. (We're) giving people an organized vehicle to be continually politically aware and active.”

People coming to the rotary standout are encouraged but not required to bring signs. More information is available at ourrevolution.com/about and at lowercapeindivisible.com/about/