Elon Musk is among the speakers who will precede President-elect Donald Trump at his pre-inaugural rally in Washington, D.C., on Sunday, according to a source familiar with the planning.

President-elect Trump is poised to take office on Monday, and some are already wondering whether his policies surrounding electric vehicles will help or hurt automakers including Tesla. The Austin-based automaker has collected a whopping $11 billion from the sale of regulatory credits to other automakers attempting to comply with emissions targets.