Bush has used he veto, like once or twice? I think he will sign just about anything put on his desk.
President Bush has used his veto pen a grand total of one time, to veto the embryonic stem cell reseach funding bill last summer. Yes, he has signed just about everything that was put on his desk, including a lot of pork and some real piece-of-excrement bills.
Because he really did not want to veto a “Republican Congress”. Now it is totally different that the democrats control Congress, he will be much at ease in vetoing the bills that he does not like.
It's difficult (though not impossible) to veto your own party's legislation. You have to work with them, but sometimes there's a bit of a power struggle.
When Clinton took office after elevating himself from Class B candidate to the primetime slot, many Dems in Congress thought that he was "their man" and that they could push him around. They weren't expecting him AND HILLARY to push back.
Now that there is an opposition party pushing the legislation through, it SHOULD BE easier for him to veto legislation. We have to make sure that he follows through on it.