MILWAUKEE - Paul Ryan will give the biggest speech of his life on Wednesday at the Republican National Convention in Tampa with 20 million viewers tuning in. The venue for Ryan's speech on Monday couldn't be more different - his old high school - but the address to his alma mater will be a preview, according to a Ryan aide, of his address at the convention.

The vice presidential candidate will return home to his high school, the Joseph A. Craig High School in Janesville, Wisconsin and will give a "small preview of his message about a better future for America," according to the aide. It will also surely tell the story of a local boy done good with a backdrop of an adoring hometown crowd.

The men helping to craft the address are GOP speechwriters Matthew Scully, author of Sarah Palin's 2008 Republican convention speech, and John McConnell, former Vice President Dick Cheney's speechwriter. The candidate did speech prep on Friday with aides in Manchester, New Hampshire, before a fundraiser there and Ryan also met with staff Sunday afternoon in Janesville.

The rally is meant to send off the House Budget Chairman to the RNC, although Hurricane Isaac has made his arrival date at the GOP bash still uncertain. At the Janesville rally he will also "talk about the values his hometown taught him and how they're needed in Washington right now," according to the same aide.

Despite all the prep, he still had time Sunday to fit in his beloved P90X, a rigorous exercise regime meant to confuse muscles for maximum effect. He also attended Catholic Mass, according to spokesperson Brendan Buck, and along with the staff meetings in the afternoon had dinner with his family and other relatives. Something, according to Buck, the Ryans do most Sundays.

The RNC has been condensed due to Hurricane Isaac, but Ryan is still set to address the convention Wednesday evening. Ann Romney speaks Tuesday, while the top of the ticket Mitt Romney accepts the nomination and gives his speech Thursday evening.