In June 2017, with President Trump a few months into his first term, the House Intelligence Committee called former Homeland Security Secretary Jeh Johnson in for a hearing about Russian meddling in the 2016 presidential election.

“At its heart, our democracy relies on the trust of the American people in their institutions,” Rep. Adam Schiff (D-Burbank), the committee’s ranking Democrat, said in his opening statement.

Johnson, former CIA Director John Brennan and Trump campaign advisor Carter Page were among those who testified, but the committee, chaired at the time by U.S. Rep. Devin Nunes (R-Tulare), put an abrupt end to its Russia investigation last April. It concluded, in part, that there was no evidence of collusion, coordination or conspiracy between the Trump campaign and Russia. Questions were raised about its legitimacy, especially as Robert Mueller, the special counsel tasked with investigating Russian interference in the 2016 election, continued his inquiry.

A new, Democratic-led House was sworn in this month, and Schiff is now the House Intelligence Committee chair. With recent polling showing a growing number of Americans think the president has been hiding details of his relationship with Russia, Schiff, in the eyes of many of his constituents and Democrats across the country, will have a chance to restore the trust of the American people.

“The American people entrusted a new majority in the House with a great responsibility to put forward a positive agenda for the nation,” Schiff said upon being sworn into his tenth term earlier this month, and also mentioning oversight of the Trump administration.

The House is restarting its investigation into Russian interference in U.S. elections, including a closer look into the Trump Organization’s finances and Trump associates such as Michael Cohen, who will be appearing before the committee.

“We lost a lot of valuable time we’re now going to have to make up for,” Schiff said in a phone interview this week.

Polling data shows public opinion over Trump’s ties to Russia trending against the president, but the House investigation will still be divided along partisan lines. Brennan, an Obama appointee, tweeted that the “highly partisan, incomplete, and deeply flawed report by a broken House Committee means nothing,” following the Republican-led House Intelligence Committee report last year. The president has repeatedly labeled the investigation a “witch hunt,” and many other prominent Republicans have backed that assertion or remained quiet.

In the meantime, the work of Special Counsel Robert Mueller has produced a guilty plea from Cohen for making false statements to Congress, multiple charges against former Trump campaign Chairman Paul Manafort, a guilty plea by former Trump advisor Michael Flynn for making false statements to the FBI, and charges against 12 Russians for computer hacking for the purpose of interfering in the U.S. election.

Other areas of potential concern have arisen in the media. BuzzFeed reported on Jan. 17 that Trump personally directed Cohen to lie to Congress about negotiations to build a Trump Tower in Moscow. Mueller’s office refuted the story, but BuzzFeed is standing by its reporting. Responding to the story, Schiff said in a tweet that “we will do what’s necessary to find out if it’s true.”

A few days prior, the Washington Post reported that Trump has concealed meetings he had with Russian President Vladimir Putin, including at least one instance when Trump took his interpreter’s notes. It’s unknown whether the two presidents could have discussed NATO, U.S. sanctions on Russia, or a number of other topics with implications for American interests, Schiff said.

“That poses a real risk to the country,” he added.

As the most ardent leftist factions continue calls for impeachment, Schiff said the House will take a measured and methodical look at the evidence related to the president’s ties to Russia, and whether the two sides colluded to influence the election, before any conclusions are drawn about the repercussions Trump could face.

“At this point we simply don’t know,” Schiff said.