House Democrats have already started looking into President Trump’s involvement in hush payments made to at least two women who alleged affairs with Trump during the 2016 campaign, The Wall Street Journal reported Sunday evening.

In September, Democrats sent records requests related to the payments to the Trump Organizations. Now, on the heels of winning back the majority in the House, Democrats plan to “dig in deeper” to look at Trump’s role in the agreements or knowledge of the payments, a Democratic aide on the House Oversight Committee told the WSJ.

The news follows a bombshell report from the WSJ last week, which found that Trump was aware and involved in nearly every step of the process to pay porn actress Stormy Daniels and former Playboy model Karen MacDougal to keep quiet about their alleged affairs with Trump. If Democrats find the reporting to be true, it could mean Trump may have knowingly violated campaign finance laws, which Rep. Jerrold Nadler (D-NY) — who will likely head the House Judiciary Committee next year — called an impeachable offense this weekend.