Sen. John McCain (R-Ariz.) notified his Twitter users Tuesday that he crossed the 1.7 million follower threshold.
Over 1.7 million followers!! Thanks everyone - keep tweeting!
The former GOP nominee has a long way to go if he wants to avenge his loss last year by gaining more followers than Obama.
McCain is the second-most followed sitting politician on Twitter and the 49th most followed Twitter user overall according to TwitterCounter, a widely used Twitter metrics site.
By comparison, the president's account -- which is maintained by the Democratic National Committee -- is the most popular politician on Twitter and has the fourth-most followed account overall.
TwitterCounter shows McCain likely surpassed 1.7 million followers between Saturday and Sunday, the same time frame in which Obama hit 3 million.
McCain tweets about his stances on political issues as well as his family and his favorite Arizona sports teams.
The senator tweeted from Iraq today while on a congressional delegation visit.