With the special election for Sen. Kay Bailey Hutchison's (R-Texas) seat now in limbo, Texas Lt. Gov. David Dewhurst (R) has filed for reelection.

Dewhurst, who many Republicans have pegged as the heir apparent to Hutchison should she resign from the Senate, has been left little choice but to focus on reelection. With the filing deadline for Texas being early next month, he needed to decide soon whether to seek his current post.

It seems unlikely Hutchison will clear up her plans in the next month. She has said she will not resign until after her March primary with Gov. Rick Perry, but beyond that, it's anyone's guess.

If she resigns soon after the primary, there could still be a November special election for her seat. In that situation, Dewhurst would be faced with deciding which race to campaign for.