  We consider the influence of electrostatic forces on driven translocation
dynamics of a flexible polyelectrolyte being pulled through a nanopore by an
external force on the head monomer. To this end, we augment the iso-flux
tension propagation (IFTP) theory with electrostatics for a negatively charged
biopolymer pulled through a nanopore embedded in a similarly charged anionic
membrane. We show that for the realistic case such as a single-stranded DNA,
the translocation dynamics at low salt where screening is weak and at finite
negative membrane charge is unexpectedly accelerated despite the large
repulsive electrostatic interactions between the polymer coil on the {\it cis}
side and the charged membrane. This is due to the rapid release of the
electrostatic potential energy of the coil during translocation, leading to an
effectively attractive force that assists end-driven translocation. The speedup
results in non-monotonic polymer length and membrane charge dependence of the
exponent $\alpha$ characterizing the translocation time $\tau \propto
N_0^\alpha$ of the polymer with length $N_0$. In the regime of long polymers
$N_0\gtrsim500$, the translocation exponent exceeds its upper limit $\alpha=2$
previously observed for the same system without electrostatic interactions.
