Will voters turn against Trump in the midterm elections, cutting his power?

With midterm elections approaching, attention is turning to whether American voters will curb Donald Trump's power by handing Congress to the opposition.

Midterms have historically gone badly for the party holding the White House, and control of even one chamber would sharply limit the president's legislative options.

Analysts point to the economy, immigration and the courts as the issues most likely to shape turnout, with a small number of districts effectively deciding the outcome.

The result would also set the terms for the final stretch of the presidential term, including oversight and investigations.