Pimentel usurping Senate seat now?

THE 1987 Constitution mandates that no senator shall serve for more than two consecutive terms. This is clearly written in Section 4, Article VI of the Constitution: "The term of office of the senators shall be six years and shall commence, unless otherwise provided by law, at noon on the thirtieth day of June next following their election. No senator shall serve for more than two consecutive terms."

The objective of imposing the two-term limit rule was "to avoid the evil of a single person accumulating excessive power over a particular territorial jurisdiction as a result of a prolonged stay in the same office (Talaga v. Comelec et al., GR 196804 [2012])."