On Tuesday afternoon, Rick Santorum suspended his campaign to become the Republican nominee for this November's US Presidential election. His effective withdrawal from the race --- while his run is suspended, Santorum can still raise money to pay off campaign debts --- leaves Mitt Romney as the GOP candidate to face President Obama.
That passive expression, "leaves Mitt Romney", sums up the work the former Massachusetts Governor has to do in the next 6 months to persuade wavering American voters he has the conviction to be elected President. The overriding impression from the last few months of Republican primaries is that Mitt is the last man standing, a victor because of his overwhelming superiority in finances and campaign organisation. He will not enjoy those advantages in a contest with President Obama and what is sure to be a withering assault from the Democratic Party.