challenging

A Republican congressman in Illinois is challenging a state law that allows mailed ballots to be counted up to two weeks after election day.

At the same time Rather’s controversial reporting was challenging a sitting president, Weiss led a campus campaign designed to ruin the careers of Arab professors by equating their criticisms of Israel with anti-Semitism.

Mr Masuku, who represents civil society groups groups challenging the deal, said he would have expected the government to "respect the court process and await its ruling" before accepting more deportees.

Another task challenging for human-like robots is one that would appear to be routine: walking.

Recent state and federal spending cuts will pull dollars out of an already frayed health system, exacerbating the shortage of care and making its efforts more challenging.