Republicans imposed the rule in 1995 but now want to retain the popular Dennis Hastert.The move may signal a fading of anti-incumbant fervor.Eight years after taking power, House Republicans are moving to jettison a rule they had established on the first day of their reign: a four year limit on the term of House Speaker.The proposal, expected to be approved next week, would enable Speaker Dennis J. Hastert (R-Ill.) to serve beyond the January 2007 term limit that binds him.The impending change reflects the overwhelming popularity of Hastert, the low-key successor to the fiery Newt Gingrich of Georgia, among the...