Russell Pearce of Arizona is the driving force behind the nation's harshest immigration crackdown.
The chef and driving force behind a four-star Boston restaurant brings some of her finest recipes to the table.
Energy security, rather than a nuclear Iran, is the driving force.
But midterm elections are a different story, as white voters remain a driving force as to which party gets to run Congress.
For me this is really the heart, the driving force, the energy of his thinking.
No mind can exert its full power unless the driving force comes from within.
With something of her driving force mixed with anything his father had of gentleness.
It was no longer the paralysing despair but the despair that has a driving force in it.
Not the blustering, driving force of Lund, but a will that was persistent, powerful.
There is no driving force to equal that which works from within a community—not from without.