Former Pennsylvania Sen. Rick Santorum is reportedly suspending his presidential campaign, making him the second GOP candidate in just one day to do so.

Santorum is expected to make the official announcement, and give his endorsement to another candidate, Wednesday night, CNN reported.

Another GOP departure: CNN has learned @RickSantorum will exit race tonight. Plans endorsement.

— John King (@JohnKingCNN) February 3, 2016

Santorum's reported decision comes just hours after Kentucky Sen. Rand Paul suspended his presidential campaign, as TheBlaze previously reported. It was not immediately clear who Santorum is planning to endorse.

First on CNN: @RickSantorum is dropping his presidential bid https://t.co/0AQIE5Xjd7 https://t.co/4xO9FamaQe

— CNN Politics (@CNNPolitics) February 3, 2016

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