Mortgage rates are bouncing around, though not because of inflation data or job numbers. Financial markets (stocks and bonds) are being shaken by President Donald Trump's on-again, off-again tariffs.

Springtime home shoppers may be feeling the impact of an intensifying trade war. The average rate on a standard, 30-year fixed mortgage was 6.83% in the week ending April 17, up from 6.62% a week ago, mortgage financing provider Freddie Mac said Thursday. That’s the largest one-week jump in mortgage rates in nearly a year.

The average rate on a 30-year mortgage in the U.S. climbed to its highest level in eight weeks, a setback for home shoppers in the midst of the spring homebuying season.

The Trump administration is seeking to have the Justice Department prosecute New York Attorney General Letitia James for mortgage fraud, according to reports.