As controversy surrounds a House investigation of Russian election meddling, leaders of the Senate Intelligence Committee are pledging a thorough and bipartisan effort to get to the bottom of it.

FOX's Jared Halpern has more from Capitol Hill:

A day before it's first public hearing on Russia's election interference, a joint appearance by the top Republican and Democrat on the Senate Intelligence Committee:

(Burr) "Mark and I work hand in hand on this."

Republican chairman Richard Burr says he and Democratic co-chair Mark Warner are partners to see the investigation through:

(Warner) "AnĀ outside foreign adversary effectively sought to hijack our most critical Democratic process, the election of a President."

The committee is weeks away from finishing a review of thousands of intelligence documents. Burr calls the investigation one of the biggest the Hill has seen in his tenure here.

On Capitol Hill, Jared Halpern, FOX News.

Follow Jared Halpern on Twitter: @JaredHalpern