With the primary schedule getting shorter, is Bernie Sanders finally getting serious about taking on Hillary Clinton?

During a rally in Warren, Michigan on Saturday, Sanders renewed his calls for Hillary to release the transcripts of speeches to Wall Street bankers.

“As some of you know, she has given a number of speeches behind closed doors to Wall Street,” Sanders said as the crowd booed loudly.

“In fact, she has been paid $225,000 per speech. Now I kinda think if you’re going to be paid $225,000 for a speech, it must be a fantastic speech. A brilliant speech which you would want to share with the American people, right?” Sanders said to cheers.

It’s not the first time Sanders has pawed at Clinton over the speeches.

Clinton’s Democratic rival tweeted a link to “IWillLookIntoIt.com,” a reference to her dodge of a request to release the transcripts of her paid speeches to financial firms.

Sanders’ simple tweet received over 5,200 retweets and caused the site to crash that morning.

The site has nothing more than the text, “Hillary Clinton has been looking into releasing her transcripts for paid speeches to Wall St. and other special interest for,” followed by a running clock.

As of this moment, the clock stands at 30 days, 9 hours, 23 minutes and 57 seconds.