Sunday on 'This Week': Rep. Adam Schiff and Gov. Chris Christie Schiff and Christie will appear on "This Week" Sunday.

 -- House Intelligence Committee ranking member Rep. Adam Schiff (D-Calif.) discusses the latest in the Russia investigation, Sunday on “This Week.”

Plus, following President Trump’s declaration of the opioid crisis as a public health emergency, George Stephanopoulos goes one-on-one with Gov. Chris Christie (R-N.J.) chair of the President’s Commission on Combating Drug Addiction and the Opioid Crisis.

And after major headlines surrounding sexual harassment allegations, founder of the ‘me too.’ movement Tarana Burke and Rep. Brenda Lawrence (D-Mich.) join the program.

And the Powerhouse Roundtable debates the week in politics, with ABC News political analyst Matthew Dowd, Democratic strategist and former Clinton campaign spokesperson Karen Finney, “FOX & Friends” co-host Brian Kilmeade, author of the new book “Andrew Jackson and the Miracle of New Orleans,” host and managing editor of “News One Now” Roland Martin, and former Trump White House Deputy Chief of Staff Kate Walsh Shields.

See the whole political picture, Sunday on “This Week.”

Like “This Week” on Facebook here. You can also follow the show on Twitter here.

Go here to find out when “This Week” is on in your area.