How the midterm elections could reshape the second half of Trump's presidency

The United States holds midterm elections this November, a vote staged in the middle of a presidential term. President Donald Trump is not on the ballot, yet the result could shape how the final two years of his presidency unfold.

The vote is seen as a significant test for the president's policies. It could shift the balance of power in US politics and, with it, Trump's ability to pursue his agenda for the rest of his term.

Only limited details are available at this stage. Al Jazeera examines in a video report how the election results could affect the remainder of the president's time in office.