A 10-day losing streak for the euro against the U.S. dollar is rekindling an old debate: Will the common currency reach parity with the dollar?

In the last two weeks, the euro has fallen 4% against the dollar, hitting $1.06, a level last seen 12 months ago.

The sharp shift in expectations for U.S. interest rates and economic growth since the American presidential election has refueled the euro’s fall against the greenback. If the Federal Reserve increases rates, expectations are the dollar would rise further by drawing money to the U.S. looking for higher returns.

The European Central Bank, meanwhile, is showing few signs of a major shift in a monetary policy that has pushed rates into negative territory and includes a huge bond-buying program.

The euro also has to contend with a gantlet of coming eurozone votes that could increase power for the sort of populist parties that, many investors believe, embrace policies that could stymie growth.