Tagg Romney tipped for Senate run

The younger Romney, left ,worked hard for his father on the trail last year (Getty Images)

The election to fill the Secretary of State John Kerry’s old US Senate seat in Massachusetts took a curious turn with reports that Tagg Romney, the eldest son of Mitt Romney, might jump in the ring.

The younger Romney worked hard for his father on the trail last year but will be best remembered for voicing an urge to “take a swing” at Barack Obama, a comment he apologised for. The notion of him running for the Senate drew a sarcastic Twitter response from ex-Obama aide David Plouffe. “Hidden genius behind Romney campaign and wanna be pugilist looking at Senate… Hard to see.”

Sources close to the family told ABC News a Tagg run was unlikely because of a commitment to his Boston venture-capital firm.