As outlined by Stephanie Ruhle on MSNBC a few minutes ago:

June 7: Trump and Clinton become the presumptive nominees for president.

June 9: Donald Trump Jr., Jared Kushner & campaign chair Paul Manafort meet with Russia lawyer.

June 9: Trump tweets about 33,000 missing emails.

July 18: Day one of GOP convention, Trump campaign changed the GOP platform to ensure that it didn't call for giving weapons to Ukraine to fight Russia.

July. 21: GOP concludes with Trump giving his speech accepting the Republican nomination.

July 22: WikiLeaks releases stolen emails from Democratic National Committee.

July 25: Democratic convention begins.

July 27: Trump asks Russia: "If you're listening, I hope you're able to find the 30,000 emails that are missing."

August 4: CIA Director John Brennan confronts his Russian counterpart about Russia's interference.

October 4: WikiLeaks says they will publish [missing] campaign emails.

October 7: Homeland Security and the Director of National Intelligence say Russia is interfering in the 2016 election.

October 7: WikiLeaks begins releasing Clinton Campaign Chair John Podesta's emails.

October 31: Trump says "This WikiLeaks is like a treasure trove."

November 4: Trump says "Boy, I love those WikiLeaks!"

I'm sure this is all a coincidence.