U.S. government debt prices were mixed Monday on concerns over President Donald Trump's ability to deliver on key campaign pledges such as tax cuts and infrastructure investment.
Last week, President Trump failed to get the support of the Republican party to repeal and replace Obamacare, denting his image as someone who can get deals done.
The yield on the benchmark 10-year Treasury notes, which moves inversely to price, was lower at around 2.373 percent, while the yield on the 30-year Treasury bond was also lower at 2.978 percent.
Investors also digested a two-year notes sale worth $26 billion. The Treasury department sold the notes at a high yield of 1.261 percent. The bid-to-cover ratio, an indicator of demand, came in at 2.73.
Overseas sovereign bond prices also rose, with bond yields in Germany and France fell to their lowest levels in around three weeks.
Since November's U.S. election, expectations that large fiscal stimulus under a Trump administration would help push up economic growth and inflation have boosted risk assets and dented safe-haven bonds in the U.S. and Europe.
But the healthcare bill was pulled from the floor of the House of Representatives on Friday because it failed to draw enough support from within Trump's Republican Party - throwing so-called "Trump reflation" bets into reverse.
In oil markets, Brent crude traded at around $50.77 a barrel on Monday, down 0.06 percent, while U.S. crude was around $47.75 a barrel, down 0.46 percent.
—Reuters contributed to this report.