I don't even get this question.
I don't see any swing towards Clinton.
Four years ago, here is how Kansas voted: total votes cast: 1,159,971.
Votes for Obama: 440,726 (38.00%), votes for Romney: 692,634 (59.71%), votes for others: 26,611 (2.29%).
Here is what happened this year: total votes cast: 1,184,402.
Votes for Clinton: 427,005 (36.05%), votes for Trump: 671,018 (56.65%), votes for others: 86,379 (7.29%).
The swing was toward the other candidates, like Johnson and Stein.
Are you calling it a swing towards Clinton because Romney beat Obama by 21.71 percentage points - nearly 252,000 votes - but Trump beat Clinton by 20.60 percentage points - 244,00 votes?
