House Democrats have renewed their push to acquire some insight into President Donald Trump’s monetary records, according to a letter released on Wednesday afternoon.

The move represents an escalation of congressional Democrats’ longstanding interest in acquiring the President’s financial records. Trump declined to publish his tax returns during his 2016 presidential campaign, making him the first significant candidate not to do so in three decades.

The Democrat-led committee asked Mazars U.S.A., a tax and accounting firm, for records this month connected to Trump’s private financial sources, with a specific fixation on his lost bid to procure the Buffalo Costs before he became president.

Moreover, the committee asked Mazars for supporting files used to generate those reports, as well as interactions between the firm and the President himself.

The news leaked after leading Republican politicians on the panel sent a letter to Wahba expressing their annoyance over Cummings’ appeal and his absence of discussion with them before making it.

The request relates Trump’s former lawyer Michael Cohen’s testament before the committee in late February. Cohen reiterated the very same sort of declaration had been sent out to Trump’s insurers, in an attempt to lower his premiums by reassuring lending institutions about his capacity to pay them.

Two of those declarations, from 2011 and 2012, are signed by Mazars. The 2013 statement is much shorter and unsigned.

The President and his supporters on Capitol Hill have called on Democrats to discontinue their inquiries into the matter, which they have long ridiculed as politically motivated.

Could this affect the Trump 2020 campaign?

Trump’s financial declarations have the source some debate, with some Democrats pushing the problem since elections. Though the inquiries did not affect the President’s previous campaign, the issue has leered over his shoulder for the past few years.

The president’s supporters have spoken up versus the recent letter, with Rep. Jim Jordan (R-Ohio), the top Republican politician on the Oversight panel, and Rep. Mark Meadows (R-N.C.), a senior member of the committee launching a joint statement stating, “We should not waste our limited resources and energies on matters that do not improve the operations of the federal government or better the lives of our constituents,” adding that Cummings’ examination waas “an ill-conceived inquiry into the finances of President Trump when he was a private citizen.”