<prompt> Translate the following text to EnglishWarekani waliendelea kudai kwamba sheria ya War Powers Act iliyopitishwa na bunge la Marekani mwaka 1973 ili kuimarisha mamlaka ya serikali ya Marekani ya kutangaza vita ilikuwa kinyume cha katiba na mamlaka ya kijeshi ilikuwa kwa rais pekee.  <response>: Republicans, on the other hand, invariably maintained that the War Powers Act, which Congress passed in 1973 to assert its constitutional power to declare war, was unconstitutional, and that military authority rested solely with the president. 