Republican senators emerged Tuesday night from a candidate forum largely tight-lipped on which of their colleagues they would support to replace Senate GOP Leader Mitch McConnell (R-KY) on the eve of a secret ballot vote and President-elect Donald Trump’s visit to Washington.

Two hours of huddling behind closed doors with the trio of contenders fielding questions offered few clues to senators over who will prevail Wednesday in what will amount to the GOP’s biggest Senate leadership shake-up since McConnell first took the reins nearly two decades ago.