Dollar bills with Euro notes

The dollar hovered around a four-month low against the Japanese yen on Friday, after a vote in Washington on new healthcare legislation, which some investors viewed as a litmus test of whether U.S. President Donald Trump will be able to pass fiscal stimulus, was put on hold.

The dollar initially weakened slightly after Republicans in Congress said they lacked the votes to pass their proposed U.S. healthcare system overhaul, and a key committee chairman came out in opposition following Trump's demand for a vote in a gamble that could hobble his presidency.