In what may be the most material development of the day, moments ago GOP Representative Justin Amash (R-Mich.) said the report that President Trump pressured ousted FBI Director James Comey to end an investigation would merit impeachment if true, becoming the first Republican lawmaker to break from the party and hint at impeachment.

Amash tells reporters that if Comey memo allegations are true, it's grounds for impeachment. Says he trusts Comey more than Trump. — Katie Bo Williams (@KatieBoWill) May 17, 2017

Subseqeuentlly, when asked by The Hill if the details in the memo would merit impeachment if they're true, Amash reiterated "Yes.... But everybody gets a fair trial in this country," Amash added as he left a House GOP conference meeting.

When asked by another reporter whether he trusted Comey's word or Trump's, Amash said: "I think it's pretty clear I have more confidence in Director Comey."

According to the Hill, Amash has been one of only two House Republicans to cosponsor a Democratic bill to establish an independent commission to investigate Russia's role in the election. Rep. Walter Jones (R-N.C.) has also endorsed the legislation.

Amash is a frequent conservative critic of the Trump administration, and in the past has broken with the White House on a variety of issues, including healthcare reform, NSA surveillance and the Justice Department's new tougher sentencing guidelines.

And now all eyes on John McCain who many speculated would be the most vocal Republican opponents of Trump, and the first GOPer to recommend impeachment of his old nemesis.

Following the report, the USD tumbled to fresh intraday lows.