"I’m not saying he bought them, but Romney’s follower stats have taken a sharp and sudden rise since Friday 5PM EST," Green wrote.
Romney's campaign on Monday denied those claims.
"We have reached out to Twitter to find out additional information regarding the rapid growth," Zac Moffatt, the Romney campaign's digital director, told BuzzFeed.
Either way, Romney is finally starting to catch up to President Obama's more active Twitter feed. Romney currently has 817,777 followers compared to Obama's 17,776,992.