New Delhi, Aug. 24 -- President Donald Trump is entering the second half of his term with several important vacancies among his senior White House staff, creating uncertainty as his administration prepares for a potentially difficult political environment, according to Politico.

The departures come at a critical moment for Trump. The administration could soon face a Democratic-controlled Congress, increased congressional subpoenas and investigations, continuing conflict in the Middle East and an increasingly competitive Republican presidential primary.

James Braid, Trump's top liaison to Congress, announced his departure this week, while White House press secretary Karoline Leavitt said the previous week that she would leave her post. T...