Timothy Markham Sheldon[1] (born March 9, 1947) is an American farmer, businessman, and politician who served as a member of the Washington State Senate, representing the 35th District from 1997 to 2023.

[3] Sheldon was an opponent of state funding for the Mariners and Seahawks sports stadiums, calling the proposed legislation "corporate welfare."

[6] After the 2012 state legislature elections, he and Senator Rodney Tom joined the Republicans in a "Majority Coalition Caucus," resulting in a power sharing agreement, effectively giving the two Democrats control of the state senate along with 23 Republicans.

Sheldon subsequently became president pro tempore of the Senate, elected by both Democrats and Republicans.

[7] After Roach won a seat on the Pierce County Council in the 2016 election,[8] Tim Sheldon, once again, became president pro tempore of the Washington State Senate.