Washington(CNN)Americans still strongly back the US providing aid for Ukraine's fight against Russia, but there has been a decline in support amongst Republicans as some prominent GOP politicians and media figures express opposition to the US providing additional support to Kyiv, a new poll has found.

The poll from the Chicago Council on Global Affairs found that most Americans still support aiding Ukraine -- 65% support sending weapons, 66% support economic aid, 75% support increasing sanctions on Russia, and 73% support accepting Ukrainian refugees to the US.

The Biden administration has sent roughly $20 billion in assistance to Ukraine, as of last month, and 40% of respondents to the new poll say the US should "maintain its current level of support for Ukraine indefinitely," rather than intervening militarily in support of Ukraine or gradually withdrawing US support.

However, the share of Americans who believe the US should support Ukraine for "as long as it takes" dropped 10 percentage points since the summer, the poll also found.