Key centrist Kyrsten Sinema just announced her support for lower prescription drug pricing - after reportedly opposing it for months

Sen. Kyrsten Sinema of Arizona.
AP Photo/J. Scott Applewhite
Sen. Kyrsten Sinema's office released a statement on her support for lower prescription pricing.
She's publicly backing a proposal that would let Medicare negotiate down prescription drug prices after reportedly opposing it throughout the fall.
The centrist senator was a key holdout, so this represents a major step forward for the measure.
Lower costs on prescription drugs are back in Democrats' social spending framework - and key cen