((a)) ** .—** The maximum term of imprisonment for a violation of this chapter after a prior domestic violence or stalking offense shall be twice the term otherwise provided under this chapter.
((b)) ** .—** For purposes of this section—
((1)) the term “prior domestic violence or stalking offense” means a conviction for an offense—
((A)) under section 2261, 2261A, or 2262 of this chapter; or
((B)) under State or tribal law for an offense consisting of conduct that would have been an offense under a section referred to in subparagraph (A) if the conduct had occurred within the special maritime and territorial jurisdiction of the United States, or in interstate or foreign commerce; and
((2)) the term “State” means a State of the United States, the District of Columbia, or any commonwealth, territory, or possession of the United States.