A group of Republican lawmakers, including Rep. Marjorie Taylor Greene (R-Ga.), on Tuesday defied mask rules on the House floor, saying that the face coverings are “oppressive” and “nothing but a political tool.” “Best $500 I ever spent,” said Rep. Brian Mast, R-Fla., after he exited the chamber, referring to the House floor mask mandate that penalizes violators $500 for a first offense and $2,500 if they violate the rules again. It’s part of a resolution passed Jan. 12 that states that the sergeant-at-arms “is authorized and directed to impose a fine against a Member, Delegate, or the Resident Commissioner for the failure to wear a mask in contravention of the Speaker’s announced policies of January 4, 2021.” The resolution was embedded as an amendment to H.R. Res. 21, which called on then-Vice President Mike Pence to invoke the 25th Amendment to remove former President Donald Trump from office. The House …