First, remembering that this year ends in an "8", we should consider that over the past 9 decades, years ending in 8 were up 78% of the time (7 of 9).
Second, with respect specifically to Presidential Election Years, they have been UP from June to December 81% of the time since 1924 (17 of 21). (see below)
In other words, we have several bullish indicators for the remainder of this year.
1924 - up
1928 - up
1932 - up
1936 - up
1940 - up
1944 - up
1948 - down
1952 - up
1956 - up
1960 - down
1964 - up
1968 - up
1972 - up
1976 - down
1980 - up
1984 - up
1988 - up
1992 - down
1996 - up
2000 - up
2004 - up