Speaker of the Oklahoma House of Representatives

On May 2, 2016, the Republican caucus voted to have McCall as their next Speaker over House Appropriations and Budget Chairman Earl Sears of Bartlesville.^[9] He was elected Speaker-designate by the Republican caucus on November 15, one week after he was reelected to his seat in the November 8 elections.^[11] He was formally elected Speaker on January 3, the first day of the 55th Oklahoma Legislature.^[11]

In 2018, four other Republican members challenged McCall for the position of speaker. Three of the four withdrew before the vote, with Chad Caldwell of Enid left opposing McCall. On March 8, the Republican caucus reelected McCall as speaker in a closed-door vote.^[12]

In April 2023, a "week before the deadline for bills to be heard in the opposite chamber's committees," McCall and the President Pro Tempore of the Oklahoma Senate, Greg Treat, were said to "continue to throw jabs at each other's education plans," leading parents and educators to be concerned there wouldn't be a solution that session.^[13] As the session neared its end, both McCall and Treat still had not come to an agreement.^[14] It was reported that the "two sides didn't even agree on how much they had been talking about education."^[15] McCall reportedly thought the talks were going well, while Treat said he didn't feel "very hopeful."^[16]

For school vouchers in a bill introduced in 2023, Treat acknowledged that "private schools wouldn’t be forced to admit all students, but he believes schools would expand enrollment when more families can afford it." Democrats have had concerns that "there are no assurances that low-income students would be admitted into a private school." Treat has also accused McCall of "refusing to negotiate and said the Senate’s income cap was a 'more responsible' school choice plan."^[17]