No matter when the Republican National Convention officially starts, it still marks perhaps the best chance for party leaders to ratchet up what has until now been bridled enthusiasm for Mitt Romney — as he and President Obama compete for the last of the undecided voters in a very tight race.

The balloons and confetti are set to cascade inside the Tampa Times Forum when Romney accepts the nomination, as planned. And party leaders have assembled Romney’s most ardent and passionate supporters to make their case on stage about why Romney is the best choice in November to lead the country.

“This is a huge opportunity to capture the attention of the American public and keep them focused for several nights,” said Juleanna Glover, a Republican strategist and co-founder of the Washington-based Ashcroft Group.