WASHINGTON (AP) — A revised Senate Republican health care bill will likely retain a pair of tax boosts President Barack Obama imposed on wealthier Americans that have helped finance his law's expansion of coverage, a leading Senate Republican said Tuesday.

The two levies — one on investment income and another on the payroll tax that helps finance the Medicare health insurance program for the elderly — are among the biggest that Obama's 2010 statute imposed. Some of the money would be used to increase a fund the GOP bill would disperse to states to help insurers contain consumers' premiums and...