Trump’s 50-day Russian sanctions pause will cost lives

President Donald Trump likes to strike deals, and he's willing to give adversaries second and even third chances to reach them. But he himself says he thought he had a deal with Vladimir Putin to halt the fighting in Ukraine "four times" already. So why give the Russian strongman yet another chance, this one to last 50 days? That's just 50 days of additional bloodshed. Unfortunately, that's just what Trump did when he threatened Tuesday to impose tough new sanctions on Russia if Putin refused to agree to a cease-fire within 50 days. Predictably, Moscow read that as timidity: "Trump…