Support WBURSenate Democrats want to fight inflation, but there are limits to what they can doPlay03:56Download AudioDeirdre WalshFebruary 24, 2022 ShareSen. Mark Kelly, D-Ariz., is part of a group of Democrats up for reelection in 2022 pushing for eliminating the gas tax for the rest of the year to address higher prices at the pump. (Getty Images)