When you put ungodly people in office you put ungodly principles in office. God can't bless ungodly principles therefore God can't bless you for promoting ungodly principles. If you put Godly people in office you put Godly in office God can bless Godly principles therefore he can bless you for promoting Godly principles.
When the Israeli leaders launched their expansionist war in June 1967 they never envisaged that 40 years later they would still be haunted by the consequences.