Senate Republican Whip John Thune is urging President-elect Donald Trump to remain neutral in the upcoming race to succeed Mitch McConnell as Senate GOP leader, suggesting it would benefit Trump to allow Republican senators to make their own choice. Thune's appeal comes as he positions himself as a marginal front-runner against Sens. John Cornyn and Rick Scott, both of whom have closer ties to Trump. Allies of Thune express concerns that Trump’s endorsement could sway the contest in favor of his rivals, particularly Scott, who has actively supported Trump. As the race looms, Thune has been in communication with Trump and aims to strengthen their relationship, despite previously endorsing another candidate. Additionally, Sen. Mike Crapo is set to take on a key role in managing tax legislation under Trump's presidency, though his cautious style may influence the GOP's approach to upcoming fiscal challenges.