Tonight on the Last Word: The Washington Post reports the January 6 committee is discussing whether to use the hearings to explore Ginni Thomas’s Jan. 6 role. Also, Rhode Island's legislature passes a bill to raise the legal age to buy guns and ammunition from 18 to 21. Plus, the U.S. pledges $1 billion in new military aid to Ukraine. And Vice President Kamala Harris warns that a Roe reversal may threaten other freedoms. Rep. Jamie Raskin, Sen. Sheldon Whitehouse, Michael McFaul and Michele B. Goodwin join Lawrence O’Donnell.