Check out the website: https://lenspoliticalnotes.com  Look at the recent Political Notes and Len’s Letters on the website Incumbents:   Consider Missouri and its neighbors.  Missouri is south of Iowa, north of Arkansas, and east of Kansas.  It is also west of the southern part of Illinois, but Illinois’s statewide voting is dominated by Chicagoland.  Think of Missouri and the three neighbors – Iowa, Kansas, and Arkansas – as a region.  Those four states have 8 Senators and 20 Representatives and some competitive contests.  All four states are Republican, but Kansas and Iowa are showing hints of purple.  Here are competitive races in…