Retired Gen. Wesley Clark will campaign with congressional candidate Charlie Brown Thursday in Roseville and assist in Brown's program to benefit veterans who need help.

Clark, who ran for president in 2004, will make a $30,000 presentation of new donations to Brown's "Promises Kept Veterans Charity Challenge" campaign, which donates 5 percent of his campaign donations to nonprofit community-based groups that help veterans and their families.

"It's important to call attention to the challenges war fighters and their families face when they come home," said Brown, a Roseville Democrat and retired U.S. Air Force lieutenant colonel who is seeking to represent the 4th Congressional District and made the remarks in a statement.

"However, if history has taught us anything, it's that we can't let the conversation end there, and too often it does," Brown said in the statement.

Brown and Clark will also work together on Friday and organize volunteers to create care packages for U.S. soldiers serving in Iraq and Afghanistan. Brown's son has served four tours of duty in Iraq.

The 4th district seat is being contested by Brown and state Sen. Tom McClintock (R-Thousand Oaks). Both men seek to replace retiring U.S. Rep. John Doolittle (R-Roseville).