That sigh of relief you heard coming from the direction of Boston was Mitt Romney's campaign operation, now that it no longer needs to expend any more resources trying to drive Rick Santorum from the contest for the Republican presidential nomination.
Aside from the money and brainpower that the Romney campaign can now target at President Obama as it rotates fully to general-election-campaign mode, the GOP front-runner has, even more important, finally freed himself from his last significant anyone-but-Romney challenger.
Despite falling short in the quest for the Republican presidential nomination, former Pennsylvania Sen. Rick Santorum has established himself as one of the dominant conservative voices in America, particularly when it comes to social issues such as abortion and birth control.
Santorum announced Tuesday that he is suspending his quest for the presidency.
Santorum ultimately chose to suspend his campaign ahead of the April 24 primary in Pennsylvania. A loss on his political home turf would have done serious damage to his future electoral prospects.