Despite the polls, the U.S. electorate is unlikely to vote an outsider into office. What I mean by outsider is one with either no political experience – Fiorina, Trump, Carson- or a candidate who is not a true member of one of the two parties – Trump and Sanders.
For better or worse, the U.S. has just two functioning parties, and one, the GOP, is struggling to stay relevant as it’s been hijacked by Trump and is very close to becoming a fringe party of loud unelectable extremist voices. In a fierce battle to rescue the party, the leadership will turn its back on Trump and its long line of clowns, which spells defeat for Cruz (the most conservative of the bunch based on rankings from GovTrack.us), Rand Paul, Rick Santorum, Mike Huckabee, Chris Christie, Kasich and Rick Perry. Lindsay Graham and Bobby Jindal have no chance polling at less than 1%. This leaves Bush and Rubio to duke it out and as flawed as Bush numero tres happens to be, I expect him to come out on top.
On the Democrat side, while Sanders, like Trump has attracted large crowds, most won’t vote for a self-described Socialist, much to the dismay of Republicans who praise Bernie as a serious and honest candidate. The GOP would also like nothing better than for Biden to get into the race and even apparently persuaded Quinnipiac to poll Biden’s numbers even though he is not yet running. The GOP and the Press have relentlessly attacked Hillary Clinton over the email server affair hoping to turn it all into a scandal so that Biden runs and wins the nomination. If he does, Bush may not trounce Biden but he’d have a much easier time beating Biden than he would Hillary Clinton. However, despite the GOPs attempts to manipulate the Democratic race, I expect Clinton to survive server “scandal” and the rehashed assaults over her role in the Benghazi attack and win the nomination fairly handily over her competitors and take the general by a hanging chad, thanks to Trump’s last minute 3rd party disruption, a la Ralph Nader and Ross Perot.