Can only read once from PIC16's RCO port - c

Question

Been searching for an answer for this for a few days now. I'm trying to create this simple verification program where if I push a button it drives the voltage on RC0 to 5 volts, and when the button is unpushed, a pulldown resistor pulls the pin down to 0. The problem is, the code will only work the first time I push the button. After that it will not enter the if (RC0 == 1) loop. Here is my code snippet. What am I missing here?
void main(void){
/* Configure the oscillator for the device */
ConfigureOscillator();
/* Initialize I/O and Peripherals for application */
InitApp();
TRISB = 0x0F; // turn on RB7 for use as output
TRISC = 0xFF; // turn on RC0 for use as input
ANSEL = 0b11101111; // use RC0 as digital input
unsigned char time = 0;
while (1) {
//delay for 10 seconds
if (PORTCbits.RC0 == 1) {
while (time < 10) {
/* TODO */
RB7 = 1;
__delay_ms(100);
RB7 = 0;
__delay_ms(100);
time++;
}
}
if (PORTCbits.RC0 == 0){ //This if statement will always execute when
//RC0 == 0, but will not execute when I push
//the button. This really confuses me.
//Can RCO be given a value different than 1?
__delay_ms(2000);
}
RB7 = 0;
__delay_ms(500);
RB7 = 1;
__delay_ms(500);
}
}