WASHINGTON, Aug 17 (Reuters) - President Donald Trump's approval rating fell to the lowest level of his presidency with an overwhelming majority of Americans concerned the U.S. Trump approval falls to 33%, lowest of his presidency, Reuters/Ipsos poll finds Key points and original sources are listed below.

• WASHINGTON, Aug 17 (Reuters) - President Donald Trump's approval rating fell to the lowest level of his presidency with an overwhelming majority of Americans concerned the U.S. war with Iran will last a long time, according to a Reuters/Ipsos poll that conclud...S1

• Trump approval falls to 33%, lowest of his presidency, Reuters/Ipsos poll findsS2

• Trump approval falls from 35% earlier this month, Reuters/Ipsos poll shows64% of Americans disapprove of Trump's White House performance, Reuters/Ipsos poll shows80% expect US involvement in Iran...S3

• US President Donald Trump’s approval rating has fallen to the lowest level of his presidency, with an overwhelming majority of Americans ‌concerned the US war with Iran will last a long time, according to a Reuters/Ipsos poll that concluded on Monday. Just 33...S4