Usually when candidates launch a campaign, they get a bump. It happened with ALL the Republican candidates so far.
Cruz had his initial bump, then Paul, and finally Rubio.
However, Hillary is missing her lady bump, and in fact is experiencing shrinkage.
The National Journal reports:
A 47 percent plurality view her unfavorably while 46 percent view her favorably. For the first time, her net unfavorable ratings put her (narrowly) behind several Republican contenders, including Marco Rubio, Scott Walker, and Rand Paul. Her trustworthiness is taking a bigger hit: Only 38 percent view her as being honest, while 54 percent disagree.