Trump's endorsement of Netanyahu is intended to advance his own political ambitions rather than influence the outcome of the Israeli election.

Trump's major foreign endorsement reveals way more about his own ambitions https://www.alternet.org/trump-netanyahu-endorsement/ via Alternet.org

Trump's major foreign endorsement reveals way more about his own ambitions For Donald Trump to endorse Israeli Prime Minister Benjamin Netanyahu for reelection to a seventh term exacted no price, resurfaced personal loyalty over the issues at hand, and likely will prove to have little outcome on an already close election on Oct. 27. https://www.alternet.org/trump-netanyahu-endorsement/