Eli Lilly's CEO Dave Ricks spoke with CNBC.
The company opposes the 'most favored nation' drug pricing proposal.
The push is part of a broader effort by the White House.
Briefing: Eli Lilly opposes push to pass Trump's drug pricing deals into law, CEO says
Strategic angle: Eli Lilly's CEO expresses opposition to the White House's efforts to codify drug pricing reforms.