With no clear base of support, Marco Rubio gambles on a broad approach

It’s been nearly three months since Rubio launched his presidential campaign amid lofty expectations from many Republicans, who view the youthful Cuban American senator from Florida as the party’s best hope for a rapidly changing electorate.

But polls show he hasn’t made a dent in the leads enjoyed by Wisconsin Gov. Scott Walker and former Florida governor Jeb Bush in the first four primary states. Bush, meanwhile, just announced a massive $114 million fundraising haul, while Walker is set to officially kick off his campaign Monday.

So Rubio has embarked on a strategy to compete in each of the four early states of Iowa, New Hampshire, South Carolina and Nevada. The hope is to strike it big in at least one by cobbling together a diverse coalition of Republican voters. It is perhaps the best option for a contender who, unlike Bush and Walker, has neither an obvious path to the nomination nor a clearly defined base of support.