For Ukraine and its supporters, the sudden death of U.S. Sen. Lindsey Graham raises an important question: Without a close ally of U.S. President Donald Trump advocating loudly for Ukrainian President Volodymyr Zelenskyy’s government, will his administration’s recent tilt in favor of Kyiv last?

The answer will especially affect two major issues — legislation to sanction Russia, which Graham pushed for more than a year, and military assistance for Ukraine.

On both, the momentum has lately been in Ukraine’s favor as Kyiv faces intensified attacks by Russia and pressure to ?end the nearly 4?-year conflict.