Rick Perry

Jeb Bush's recent converts are investing for the long term

It's been almost two months since Jeb Bush was atop a Republican presidential poll in New Hampshire or South Carolina. He's never quite been the top choice in Iowa. He's fifth in a pair of national polls this week. But those numbers aren't keeping Bush from picking up supporters around the country in the scramble to scoop up men and women from recently folded presidential campaigns. A significant share of Scott Walker's former team is backing the son and brother of former presidents, and the head of Rick Perry's super-PAC is now helping Bush raise money. The campaign has also expanded its grassroots teams in Iowa, South Carolina and Nevada, and announced new...