NPR's Joel Rose speaks with Ukrainian Minister of Parliament, Oleksandr Merezhko, about the U.S.'s diesel deal with Russia will impact Ukraine. WASHINGTON — Seven US senators from both parties issued a statement Sunday questioning the legality of President Donald Trump’s deal to allow Russian diesel exports despite a US ban in place since Moscow’s invasion of Ukraine. Key points and original sources are listed below.

• NPR's Joel Rose speaks with Ukrainian Minister of Parliament, Oleksandr Merezhko, about the U.S.'s diesel deal with Russia will impact Ukraine.S1

• WASHINGTON — Seven US senators from both parties issued a statement Sunday questioning the legality of President Donald Trump’s deal to allow Russian diesel exports despite a US ban in place since Moscow’s invasion of Ukraine. Trump on Friday announced an agre...S2