rowid,type,start,end,party,how,executive_id,executive_id_label
27,prez,1841-03-04,1841-04-04,Whig,election,15,William Harrison
28,viceprez,1841-03-04,1841-04-04,Whig,election,16,John Tyler
29,prez,1841-04-04,1845-03-04,Whig,succession,16,John Tyler
32,prez,1849-03-04,1850-07-09,Whig,election,19,Zachary Taylor
33,viceprez,1849-03-04,1850-07-09,Whig,election,20,Millard Fillmore
34,prez,1850-07-09,1853-03-04,Whig,succession,20,Millard Fillmore