(Reuters) -The United States is reviewing its sanctions policy against Venezuela after a court upheld a ban which prevents presidential candidate Maria Corina Machado from holding office, the State Department said on Saturday. The ruling by Venezuela’s Supreme Justice Tribunal on Friday means Machado, a 56-year-old industrial engineer, cannot register her candidacy for presidential elections scheduled for the second half of 2024. “The United States is currently reviewing our Venezuela sanctions policy, based on this development and the recent political targeting of democratic opposition candid…