Story highlights Where Trump's numbers do stand out is compared to his presidential predecessors

Trump's poll numbers could have a hugely negative impact on his party's chances in the 2018 midterms

Washington (CNN) On March 11, 45% of Americans approved of the job Donald Trump was doing in Gallup's daily tracking poll. It's been all downhill since then.

In the intervening 86 days, Trump's job approval has never again reached 45% in Gallup's data. In fact, the last time Trump was even at 43% was on April 28. He's spent most of the time between then and now mired in the low 40s and high 30s.

And now, Trump finds himself in the midst of his worst extended poll run of his presidency. Starting on May 28 when Gallup put his job approval at 42%, Trump has been sliding downward. The latest Gallup track on June 3 put Trump's job approval at a dismal 36% -- a single percentage point away from the lowest ebb of his time in the White House. (On March 28, Trump's job approval was at 35%.)

The Gallup numbers are no anomaly. A Quinnipiac University poll released in late May put Trump's job approval at 37%. A Monmouth poll conducted in mid-May put Trump's job approval at 39%.

Where Trump's numbers do stand out is compared to his presidential predecessors. President Obama was at 61% in the Gallup tracking poll in early June 2009. George W. Bush was at 55% in Gallup at this time in 2001. The only modern president who comes close to Trump's poor poll standing is Bill Clinton, who was at 37% approval in early June 1993. (Clinton's numbers had tanked in the wake of his firing of seven employees in the White House travel office in mid-May, a controversy that came to be known as "Travel-gate.")

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