Murky
Deity
Ah, but won't it require the liberals to agree to his bills?
If there is not 60 votes for the Presidents bills the Senate can do a filibuster, but there are ways around that. Given that the Democrats are more likely to compromise, if there is a Democrat majority in the Senate, but still Republican majority in the house and a President Romney, we can expect the same bad economics of the Bush Administration.
If there is a Republican super majority that just rubber-stamps everything, you can kiss whatever you have planned for your future goodbye unless you are super-rich like they are. Even then, the long-term future of richest people in the USA is in doubt. The (upper-class) economy might go gang-busters for a time, but you can't eat money as the saying goes.