As the CEO of the Colorado-based Liberty Energy who has said "there is no climate crisis," Wright's nomination comes with controversy.

Colorado energy entrepreneur and President-Elect Trump’s nominee for Secretary of Energy Chris Wright faced a Senate panel for his confirmation hearing Thursday. Critics on the panel pressed Wright on possible conflicts of interest and whether he would avoid the appearance of impropriety.

Wright, the founder of a fracking firm, testified that he would back all forms of low-carbon energy as well as gas, oil and coal.