Time for some Senate-Rules-Committee Magic-
Articles of Impeachment which are passed on a party-line basis may NOT be presented to the Senate by a sitting member of the Party which passed the impeachment.
Articles of impeachment passed unilaterally by one party may only be presented to the Senate by a newly elected member of the House or Representatives from the other party.
This ensures that the solemn process of impeachment of an elected president does not devolve into a taxpayer-funded campaign ad.