Illinois is going the way of the car phone.
It is a lost cause.
The third Congressional District of Illinois has elected a Democrat to Congress is 24 of the last 25 elections (50 years). The current Democrat Representative, Dan Lipinski, followed his father in this Congressional seat which has been held by father or son since 1993.
Democrat Congressman Lipinski ran unopposed by a Republican candidate in 2016. In 2014 he defeated the Republican opponent with 70% of the vote.
This is a safe district for the Democrats. The reason a holocaust denier can become the GOP candidate is no other Republican wants to spend time running in a hopeless race. The presence of this candidate serves no purpose other than to give the media and Democrats a story that supports their talking points about Republicans and conservatives being racist and bigoted. Fault the state GOP for not contesting the seat and thereby allowing a less than desirable candidate to help the Democrats with their message.