Rick Gates and Michael Flynn ordered to testify by House Intel Committee
Rick Gates and Michael Flynn

The House Intelligence Committee has subpoenaed Rick Gates and Michael Flynn -- two of the key witnesses in the special counsel probe of Trump campaign ties to Russia.

Gates, who served as President Donald Trump's deputy campaign chairman, and Flynn, a campaign adviser and then national security adviser, each agreed to cooperate in Robert Mueller's investigation as part of a plea agreement.

Neither man has been sentenced.

The Democrat-led committee ordered documents to be turned over no later than June 26, and both men were ordered to testify no later than July 10.