Democrats are poised to feature the party's rising stars from crucial swing states at next month's national convention, along with popular Massachusetts lawmakers expected to denounce presumptive Republican presidential nominee Mitt Romney's tenure leading the state.

Former Virginia Gov. Tim KaineTimothy (Tim) Michael KaineSave lives, restore congressional respect by strengthening opioids’ seizure Overnight Finance: Lawmakers, Treasury look to close tax law loopholes | Trump says he backs gas tax hike | Markets rise despite higher inflation | Fannie Mae asks for .7B Bipartisan Senate group says they have immigration deal MORE, locked in the midst of a high-profile and tightly contested U.S. Senate race, will be joined by Colorado Gov. John Hickenlooper and former Ohio Gov. Ted Strickland in Democrats' push to highlight swing states, according to a report Monday by The Washington Post.

Meanwhile, former presidential candidate Sen. John KerryJohn Forbes Kerry2020 Dem contenders travel to key primary states When it comes to Colombia, America is in a tough spot 36 people who could challenge Trump in 2020 MORE (Mass.), Gov. Deval Patrick (Mass.) and U.S. Senate candidate Elizabeth WarrenElizabeth Ann WarrenTrump's SEC may negate investors' ability to fight securities fraud Schatz's ignorance of our Anglo-American legal heritage illustrates problem with government Dems ponder gender politics of 2020 nominee MORE are all expected to earn prime speaking slots at the convention — and use that position to knock Romney's record in their home state.

Democrats are also planning to feature some of the younger up-and-comers in the party. In addition to keynote speaker and San Antonio Mayor Julian Castro — the youngest mayor of a major American city, and a Hispanic-American — speakers include Kamala Harris, the African and Asian American California attorney general, and Gov. Martin O'Malley of Maryland, rumored among the 2016 presidential candidates.

There should also be some red meat for the base, with Chicago Mayor Rahm Emanuel — a former Illinois congressman and Obama chief of staff — expected to be awarded a prime speaking slot.

Democrats had previously announced that first lady Michelle ObamaMichelle LeVaughn Robinson ObamaMichelle Obama celebrates success of ‘Black Panther’ How textbooks shape teachers — not just their students Michelle Obama dedicates Valentine's Day playlist to Barack Obama MORE and former President Clinton would anchor their Tuesday and Wednesday speaking schedules, respectively.

The Democratic convention begins Sept. 4, with President Obama set to speak Sept. 6, the final night of the convention, at Charlotte, N.C.'s NFL stadium.