David Cook, a Republican representative from Mansfield, has announced his candidacy for Texas House Speaker, marking him as the third challenger to the current speaker, Dade Phelan. Cook aims to appoint only Republicans to House committee leadership positions, a move that aligns with the demands of hardline GOP members who criticize Phelan for collaborating too closely with Democrats. He has acknowledged concerns over communication within the GOP caucus and promised a more engaged leadership style, emphasizing the importance of preserving minority party rights. Alongside Cook, fellow Republicans Tom Oliverson and Shelby Slawson are also running against Phelan, who has faced backlash for his bipartisan approach and handling of contentious issues like the impeachment of Attorney General Ken Paxton. The push for a more conservative leadership comes after a tumultuous legislative session and growing discontent among grassroots conservatives.