Presidential candidate Mitt Romney on Wednesday made a direct appeal to Republican fiscal conservatives, arguing that the president should veto any spending bill that exceeds its targets. Speaking to the Detroit Economic Club, the former Massachusetts governor addressed an issue that has riled the GOP base, who contend that the party's loss of power last November was based, in part, on excessive spending. "When our party has been in charge, we didn't distinguish ourselves on spending restraint," Romney said. "That's got to change — and it would in my administration." The one-term governor suggested giving Congress a spending target and...