washington u.s. vice president mike pence delay upcoming middle east trip days case tie-breaking vote need tax cut legislation congress senior white house official say thursday pence leave time tuesday trip begin visit cairo talk egyptian president abdel fattah al-sisi official say initially plan leave late saturday vice president pence cast tie-breaking vote u.s. senate close vote expect along party line tax legislation decide keep country case republican senator john mccain fight brain cancer hospital wednesday expect vote need want scenario side world come back official say pence set hold talk israeli prime minister benjamin netanyahu thursday jerusalem pence press secretary alyssa farah say trip pence would reaffirm u.s. commitment u.s. ally middle east work together fight islamist militants look forward constructive conversations prime minister netanyahu president sisi reaffirm president trump commitment partner region future say statement palestinian president mahmoud abbas refuse meet pence protest president donald trump decision recognize jerusalem capital israel pence delay middle east trip case need u.s. tax vote