When did Romney back Paul Tax On Gas for the Senate? Tsongas in 1978 upset one of George W. Romney’s favorite liberal Republican senators, Edward W. Brooke. Mitt may have been for Brooke and then for Tax on Gas in 1984 and/or 1990. Mitt does like some Democrats but won’t switch parties.
I don’t think Romney would switch Parties; but he’s so left of center, to even refer to him as “Moderate” is a stretch.