Sen. Elizabeth Warren (D-MA) is expected to issue the strongest indictment of the Senate filibuster of her campaign for president thus far during a speech at the National Action Network convention on Friday morning.

“Last year the Senate passed a bill that would make lynching a federal crime,” Warren will say, according to prepared remarks viewed by The Daily Beast. “Last year. In 2018. Do you know when the first bill to make lynching a federal crime was introduced? 1918. One hundred years ago. And it nearly became the law back then. It passed the House in 1922. But it got killed in the Senate—by a filibuster. And then it got killed again. And again. And again. More than 200 times. An entire century of obstruction because a small group of racists stopped the entire nation from doing what was right.”

Warren goes on to say that the filibuster has been used in recent years “by the far right as a tool to block progress on everything.”

“I’ve only served one term in the Senate—but I’ve seen what’s happening,” she says, according to the remarks. “We all saw what they did to President Obama. I’ve watched Republicans abuse the rules when they’re out of power, then turn around and blow off the rules when they’re in power.”

Democrats running for president in 2020 have been debating Senate rules for months, as activists push for a change that would not necessitate a 60-vote supermajority to pass sought-after legislation like Medicare for All or the Green New Deal, both of which have been endorsed by a large share of the Democratic candidates currently running. But many of the same candidates, including the senators in the race, have been resistant to institutional changes. The one candidate who has affirmatively campaigned on its elimination in order to address climate change is Washington Gov. Jay Inslee. Many others, like Warren before Friday, had said they’d consider it, and she previously said “all the options are on the table.”

“ When Democrats next have power, we should be bold and clear: We’re done with two sets of rules—one for the Republicans and one for the Democrats. ” — Elizabeth Warren

But these new comments mark a shift in Warren’s thinking on the matter, arriving as the Republican-led Senate invoked the “nuclear option” again this week to expedite the appointment of President Trump’s nominees.

“So let me be as clear as I can,” Warren says in the remarks. “When Democrats next have power, we should be bold and clear: We’re done with two sets of rules—one for the Republicans and one for the Democrats. And that means when Democrats have the White House again, if Mitch McConnell tries to do what he did to President Obama, and puts small-minded partisanship ahead of solving the massive problems facing this country, then we should get rid of the filibuster.”

An aide to the senator told The Daily Beast that McConnell’s actions alone this week didn’t motivate the subtle change in thinking.

“We can’t sit around for 100 years while the rich and powerful get richer and more powerful and everyone else falls further and further behind,” Warren continues. “We can’t sit around for 100 years while climate change destroys our planet, while corruption pervades every nook and cranny of Washington, and while too much of a child’s fate in life still rests on the color of their skin.”