The United States policy to support Ukraine against Russia's invasion "has become a political football" in Washington as congressional Republicans increasingly disagree with the Biden administration over financial aid to Kyiv, International Crisis Group President and CEO Comfort Ero says. Russian President Vladimir Putin has taken notice that the "unity that was there between the US and Europe may be fraying because (…) of how Ukraine has been caught up in the domestic politics of the US," Ero says during an interview with AFP in Washington. (COMPLETES VIDI34HW9NR_EN) IMAGES AND SOUNDBITES