The latest in the investigations and lawsuits involving Donald Trump, his company and the 2020 election

The volume of investigations involving former President Donald Trump, the January 6 attack on the US Capitol, efforts to overturn the 2020 presidential election and the finances of the Trump Organization is staggering.

Here's an updated list of notable investigations and lawsuits and latest developments:

January 6: House select committee investigation

Public hearings will begin on June 9 as the House panel of Democrats and two Republicans -- Reps. Liz Cheney and Adam Kinzinger -- continues its investigation into everything leading up to, and involving, the January 6 attack on the US Capitol by Trump supporters that interrupted the certification of Joe Biden's election win.

Of special interest, according to CNN reporting, are Trump's activities on January 6 and the efforts to use the levers of government to overturn the election.

The committee has issued at least 80 subpoenas requesting testimony or phone records from close Trump advisers, including Rudy Giuliani and former White House chief of staff Mark Meadows, "Stop the Steal" rally organizers and former White House staffers. It's also asked some GOP lawmakers to cooperate as well.

The panel has obtained over 2,000 of Meadows' text messages, including exchanges with GOP lawmakers, the Trump family, Fox host Sean Hannity, and conservative activist Ginni Thomas, among others.

Multiple sources previously told CNN that the committee is planning to produce a multimedia presentation and hire a writer as part of its effort to turn its largely secretive work into a compelling narrative.