Once rock-solid, the support that Ukraine has gotten from its biggest backers for its fight against Russia is showing cracks. Political posturing in places like Poland and Slovakia, where a trade dispute with Ukraine has stirred tensions, and Republican reticence in the United States about Washington’s big spending to prop up Ukraine’s military have raised new uncertainties about the West’s commitment to its efforts to expel Russian invaders more than 18 months into the war. Still, from Washington to Warsaw, where the military cost and capabilities of helping Ukraine are at issue, officials are playing down talk of a rift. To read the original story by AP, click here.