Replication Data for: Congressional 2020 forecasts

Data set includes the following variables: seat change in US House of Representatives for president's party (HC); seat change in US Senate for president's party (SC); percentage change in personable disposable income over the first two quarters of the election year (income); president's Gallup approval rating in June of election year (Junepop); midterm status where 1=midterm election (midterm); number of Senate seats the president's party is defending (SEATSEXP).本数据集包含以下变量：总统所在政党在美国众议院（US House of Representatives）的席位变化（HC）；总统所在政党在美国参议院（US Senate）的席位变化（SC）；选举年首两季度个人可支配收入的百分比变化（income）；选举年6月总统的盖洛普（Gallup）支持率（Junepop）；中期选举状态变量，其中1代表该选举为中期选举（midterm）；总统所在政党需捍卫的参议院席位数量（SEATSEXP）。