Attacking Donald Trump pays.

Just ask Rep. John Lewis, of Georgia.

The 16-term Congressman from Atlanta ignited a controversy over the weekend when he told NBC News’ “Meet the Press” that he doesn’t “see the president-elect as a legitimate president,” and credited Russian hackers with helping The Donald into the White House.

The comments now appear to be by design, clearly intended to instigate an online feud the “civil rights leader” is now leveraging to fill his campaign coffers.

Congressman John Lewis should finally focus on the burning and crime infested inner-cities of the U.S. I can use all the help I can get! — Donald J. Trump (@realDonaldTrump) January 15, 2017

On Saturday, Trump responded to Lewis’ musings with a series of Twitter posts that pointed out the obvious.

“Congressman John Lewis should spend more time fixing and helping his district, which is in horrible shape and falling apart (not to mention crime infested) rather than falsely complaining about the election results,” Trump wrote. “All talk, talk, talk – no action or results. Sad!”

Lewis, one of numerous Democratic Congressman who’ve vowed to boycott Trump’s inauguration on Friday, is now using the kerfuffle to panhandle to his supporters.

Lewis recently blasted out a fundraising email to capitalize on the controversy.

“Friend –

Today, Donald Trump attacked me on Twitter. He said that I’m “all talk” and “no action.”

I’ve been beaten bloody, tear-gassed, fighting for what’s right for America. I’ve marched at Selma with Dr. King. Sometimes that’s what it takes to move our country in the right direction,” the fundraiser read.

We refuse to stop now. We’re not done fighting for progress. We’re ready for the next four years.

Are you with us? Join me and chip in whatever you can today to help Democrats stand up to injustice.

If you’ve saved your payment information with ActBlue Express, your donation will go through immediately and be divided evenly between the DNC and John Lewis for Congress.

The email then prompted readers to “quick donate” denominations of $3, $10, $25, $50, or $100.

Lewis’ cup rattling insinuated the Trump administration aims to roll back the Bill of Rights, and attempted to liken America’s current situation to a time when blacks and whites were forced to use separate bathrooms and water fountains.

He then compared his grasping email to Dr. Martin Luther King Jr.’s quest for equality:

It took massive, well-organized, non-violent dissent and criticism of this great nation and its laws to move toward a greater sense of equality in America. We had to sit in. We had to stand in. We had to march. And that’s why more than 50 years ago, a group of unarmed citizens, black and white, gathered on March 7, 1965, in an orderly peaceful non-violent fashion to walk from Selma to Montgomery, Alabama.

Often, the only way we could demonstrate that a law on the books violated a higher law was by challenging that law. By putting our bodies on the line and showing the world the unholy price we had to pay for dignity and respect.

We need leaders who will stand up and speak up and speak out for Americans, not someone who will work against us. Not someone who will move us backwards.

That’s why I will do everything in my power to take on injustice. Will you join me?

Chip in now and help us keep working for what is right.

Lewis’ Trump criticisms were also echoed by the NAACP on Twitter, Wayne Dupree writes, but Trump hasn’t backed down. He fired off another tweet Saturday evening calling on the Congressman to work with his administration on real issues that will actually help improve the lives of his constituents, rather than divisive racial rhetoric designed to fund his next re-election campaign.

“Congressman John Lewis should finally focus on the burning and crime infested inner-cities of the U.S.,” Trump tweeted. “I could use all the help I can get!”