Governor Greg Abbott makes campaign announcement

Governor Greg Abbott has formally announced his campaign for re-election next year. The announcement comes just days before the special session is set to begin.

Abbott promised a major campaign announcement during a Facebook live video Thursday night. 

WATCH GOVERNOR ABBOTT'S FORMAL ANNOUNCEMENT

Friday also marks the anniversary of when Abbott revealed his original campaign four years ago. 

It's not clear who will run against him since no major democrat has expressed any interest. Lieutenant Governor Dan Patrick denies rumors he would challenge Abbott during next year's republican primary. 

The special session in Texas begins Tuesday.