When Jeb Bush finally says on Monday that he's running for president, he'll begin the campaign with much to prove.
Back in December, the former Florida governor said he was exploring a 2016 run, an announcement that by itself had the power to kick off the campaign.
In the six months since, Bush probably has shattered a fundraising record as well as pioneering a new approach to White House campaigning. He has just completed a well-reviewed trip through Europe.
Supporters had hoped that this son of one president and brother of another would by now hold a commanding position in an unwieldy Republican field.