WASHINGTON (AP) - Democratic officials have rejected Bernie Sanders' request to remove two high-profile Hillary Clinton supporters from leadership positions at the party's summer convention.

Sanders' presidential campaign said in a letter Friday to the Democratic National Committee that Dannel Malloy, Connecticut's governor, and Barney Frank, a former Massachusetts congressman, couldn't be relied upon to perform their roles "fairly and capably while laboring under such deeply held bias."

Malloy is Platform Committee co-chairman. Frank is co-chairman of the Rules Committee.

Democratic officials responded to Sanders' request on Saturday, saying in a letter that Malloy and Frank were elected under party rules and that Sanders wasn't alleging any violations of that process.

The DNC says it reviewed the challenge, found it failed to meet the criteria and "we are compelled to dismiss it."