Donald Trump declares war on Republican senate minority leader Mitch McConnell

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Thompson alleged that Trump, Giuliani and the two groups conspired "by force, intimidation and threats" to prevent him from discharging his official duty to carry out the certification of Biden's election win.

A federal lawsuit accusing Donald Trump, Rudy Giuliani, Proud Boys, and Oath Keepers of conspiring to incite a violent riot at the Capitol on January 6 has been filed by the NAACP and the civil rights law firm Cohen Milstein Sellers & Toll.

Other lawsuit defendants are the right-wing extremist groups the Proud Boys and the Oath Keepers, whose members have been charged in the riots.

Then Tuesday, Rep. Bennie Thompson of MS filed a suit against Giuliani, Trump, and two extremist groups in connection to the Capitol insurrection.

Jason Miller, an adviser for Mr Trump, said in a statement on Tuesday (local time) that Mr Trump did not organise the rally that preceded the riot and "did not incite or conspire to incite any violence at the Capitol on January 6th".

The case also names as defendants the Republican former president's personal lawyer Rudy Giuliani and groups including the Proud Boys and the Oath Keepers, extremist organisations that had members charged by the Justice Department with taking part in the siege.

Here's an explanation of how Trump's leaving office affects his criminal and civil exposure.

The Jan. 6 mob that descended on the Capitol was attempting to stop certification of Electoral College results declaring Joe Biden victor of November's presidential election.

Both Trump and McConnell initially found themselves at odds after the Kentucky official called on his colleagues to vote to certify the 2020 election results while the former president continued to voice voter fraud claims.

In a Monday op-ed in the Wall Street Journal, McConnell again accused Trump of "moral responsibility" for the Capitol attack, adding that the former president's "behavior during and after the chaos was also unconscionable, from attacking Vice President Mike Pence during the riot to praising the criminals after it ended".

Giuliani could not be immediately reached for comment.

Thompson is represented by the NAACP and Cohen Milstein Sellers & Toll.

Despite escaping conviction, seven Republican senators joined all 50 Democrats in voting to convict Mr Trump, making it the most bipartisan impeachment trial vote ever.

Banned from Twitter-his erstwhile weapon of choice for attacking critics-Trump fired his broadside, which blamed McConnell (R-Ky.) for Republicans' loss of Senate control, via a statement from his Save America super PAC.

The two are trying to push the party in opposite directions, McConnell back toward the roots of a budget-focused, pro-trade party, while Trump, who is still backed by a large portion of the Republican voter base, advocates a more populist approach.

He's one of just a few House Republicans who voted to impeach Trump, as well as strip Rep. Marjorie Taylor Greene from her committee posts.